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  • 26

    2021-07

    2021前半年 - 辰光 实验室新品推荐③~~~人参系列~~~人参皂苷Rb1  41753-43-9  HPLC≥98%  人参  萜类化合物 C54H92O23  1109.307人参皂苷Rg1  22427-39-0  HPLC≥98%  人参  萜类化合物  C42H72O14  801.024  人参皂苷Rg5  186763-78-0  HPLC≥98%  人参  萜类化合物  C42H70O12  767.01人参皂苷Rg6  147419-93-0  HPLC≥98%  人参  萜类化合物  C42H70O12  767.01人参皂苷Rh3  105558-26-7  HPLC≥98%  人参  萜类化合物  C36H60O7  604.869人参皂苷Rh4  174721-08-5  HPLC≥98%  人参  萜类化合物  C36H60O8  620.868人参皂苷Rk1  494753-69-4  HPLC≥98%  人参  萜类化合物  C42H70O12  767.01人参皂苷Rk2  364779-14-6  HPLC≥98%  人参  萜类化合物  C36H60O7  604.87人参皂苷Rk3  364779-15-7  HPLC≥98%  人参  萜类化合物  C36H60O8  620.868       ——人参系列现货:人参皂苷Rg1;人参皂苷Rg3(R+S);人参皂苷Rg4;人参皂苷Rg5;人参皂苷Rg6;20S-人参皂苷Rg2;20S-人参皂苷Rg3;20S-人参皂苷Rh1;20S-人参皂苷Rh2;人参皂苷Rb1;人参皂苷Rb2;人参皂苷Rb3;人参皂苷Rh3;人参皂苷Rh4;人参皂苷Rk1;人参皂苷Rk2;人参皂苷Rk3;人参皂苷Rc;人参皂苷Rd;人参皂苷Rd2;人参皂苷Re;人参皂苷Rf;人参总皂苷;20R-人参二醇;20R-人参三醇;20R-原人参二醇;20R-原人参三醇;20S-原人参二醇;20S-原人参三醇;人参环氧炔醇;人参皂苷CK;人参皂苷F1;人参皂苷F2;人参皂苷F3;人参皂苷F4;人参皂苷Ra3;伪人参皂苷F11;越南参皂苷R4(共38种)~~~菊花系列~~~木犀草素-7-葡萄糖醛酸苷  29741-10-4  HPLC≥98%  菊花/莴苣  黄酮类  C21H18O12  462.36 芹菜素-7-O-β-D-葡萄吡喃糖苷  578-74-5  HPLC≥98%    菊花/母菊/女贞  黄酮类  C21H20O10  432.4 金合欢素-7-O-BEITA-D-(6''-O-丙二酸单酰)-葡萄糖苷  N/A  HPLC≥97%  菊花  C25H24O13  532.45芹菜素-7-O-BEITA-D-(6''-O-丙二酸单酰)-葡萄糖  86546-87-4  HPLC≥98%  菊花  C24H22O23  518.43       ——菊花系列现货:木犀草素-7-葡萄糖醛酸苷;芹菜素-7-O-β-D-葡萄吡喃糖苷;金合欢素-7-O-BEITA-D-(6''-O-丙二酸单酰)-葡萄糖苷 ;芹菜素-7-O-BEITA-D-(6''-O-丙二酸单酰)-葡萄糖 ~~~岩白菜系列~~~岩白菜素  477-90-7  HPLC≥98%  岩白菜  香豆素类  C14H16O9  328.27去甲岩白菜素  79595-97-4  HPLC≥98%  岩白菜  C13H14O9  314.25 ~~~独活系列~~~茴芹内酯  131-12-4  HPLC≥98%   独活  香豆素类  C13H10O5  246.22  6-甲氧基当归素/牛防风素  483-66-9  HPLC≥98%  独活  香豆素类  C12H8O4  216.19 
  • 21

    2021-07

    2021前半年 - 辰光 实验室新品推荐②   ~~~虎杖系列~~~乙酰化白藜芦醇  42206-94-0  虎杖  二苯乙烯类  C20H18O6  354.36       ——虎杖系列现货:白藜芦醇;虎杖苷;乙酰化白藜芦醇;1,8-二羟基蒽醌;二氢白藜芦醇 ~~~构树系列~~~7,4'-二羟基-3'-异戊烯基黄烷   376361-96-5  HPLC≥97%  构树  黄酮类  黄烷类  C20H22O3  310.39      ——构树系列现货:乌拉尔醇;小构树醇A;Cathayanon H;inopodophylline B;楮树黄酮醇F;5,7,3'-4'四羟基-3-甲氧基黄酮;7,4'-二羟基-3'-异戊烯基黄烷;亚油酸甲酯;对羟基苯甲酸(植物提取);D-苯丙氨酸(植物提取);L-色氨酸(植物提取);δ-生育酚(植物提取)(共12种) ~~~柴胡系列~~~4''-O-乙酰柴胡皂苷A  N/A  HPLC≥95%  柴胡  萜类化合物  三萜类  C44H70O14  823.03      ——柴胡系列现货:柴胡皂苷 A;柴胡皂苷B1;柴胡皂苷B2;柴胡皂苷B3;柴胡皂苷B4;柴胡皂苷C;柴胡皂苷D;柴胡皂苷F;柴胡皂苷H;柴胡皂苷S;柴胡皂苷元A;柴胡皂苷元D;4''-O-乙酰柴胡皂苷A(共12种) ~~~七叶/娑罗子系列~~~去乙酰七叶皂苷A  N/A  HPLC≥98%  娑罗子  萜类化合物  三萜类  C53H84O23  1089.23七叶皂苷D  219944-46-4  HPLC≥95%  娑罗子  萜类化合物  三萜类  C55H86O24  1131.27        ——七叶/娑罗子系列现货:七叶皂苷D;原七叶皂苷元;去乙酰七叶皂苷A;21-当归酰-原七叶树苷元;Protoescigenin 21-tiglate ~~~杜仲系列~~~5'-甲氧基松脂素  40957-99-1  HPLC≥98%  杜仲/秦皮/板蓝根  木脂素类  呋喃木脂素  C21H24O7  388.42(+)-丁香脂素/(+)-丁香树脂酚  21453-69-0  HPLC≥98%  杜仲 木脂素类  C22H26O8  418.44   8-羟基松脂醇二葡萄糖苷  112747-99-6   HPLC≥98%   杜仲  C32H42O17  698.67橄榄脂素-4-O-葡萄糖苷  76880-93-8  HPLC≥97%  杜仲  C26H34O12  538.55       ——所有杜仲系列现货:桃叶珊瑚苷/杜仲苷;松脂醇二葡萄糖苷;槲皮素-3-O-桑布双糖苷;5'-甲氧基松脂素;(+)-丁香脂素/(+)-丁香树脂酚 ;8-羟基松脂醇二葡萄糖苷;橄榄脂素-4-O-葡萄糖苷;绿原酸甲酯;松柏苷;松脂醇;二氢咖啡酸(共11种) ~~~山药系列~~~Volucrin  130217-31-1  HPLC≥95%  山药  C32H2608  538.55       ——山药系列现货:山药素I;Volucrin ;2,7-二羟基-4,6-二甲基菲;3'-O-甲基山药素III;山药素Ⅲ;/3,3′-二羟基-5-甲氧基联苄;山药素IV ~~~黄芩系列~~~黄芩新素; 黄芩黄酮II  55084-08-7  HPLC≥98%  黄芩  黄酮类  C19H18O8  374.3456-羟基汉黄芩素;5,6,7-三羟基-8-甲氧基黄酮  76844-70-7  HPLC≥98%  黄芩  C16H12O6  300.27韧黄芩素I;5,2-二羟基-6-7-8-三甲基黄酮  N/A  HPLC≥98%  黄芩  C18H16O7  344.325,8-二羟基-6,7-二甲氧基黄酮  73202-52-5  HPLC≥98%  黄芩  C17H14O6  314.29        ——黄芩系列现货:黄芩苷;黄芩素;汉黄芩苷;汉黄芩素;野黄芩苷;野黄芩素/高黄芩素;黄芩苷甲酯;黄芩新素/黄芩黄酮II;千层纸素A/木蝴蝶素;千层纸素/-7-0-β-D-葡萄糖醛酸苷;千层纸素A苷;韧黄芩素I/5,2-二羟基-6-7-8-三甲基黄酮;5,8-二羟基-6,7-二甲氧基黄酮;6-羟基汉黄芩素/5,6,7-三羟基-8-甲氧基黄酮;黄芩素-7-甲醚;2-羟基-3-甲基蒽醌;4-methyl-6-phenyl-2H-pyranone;4'-羟基汉黄芩素/5,7,4'-三羟基-8-甲氧基黄酮;四甲基高黄芩素;去甲汉黄芩素(共20种)
  • 15

    2021-07

    2021前半年 - 辰光 实验室新品推荐①~~~蟾蜍系列~~~3-表日蟾毒它灵  N/A  HPLC98%  蟾蜍  蟾蜍二烯羟酸内酯  C24H34O5  402.53Argentinogenin   4236-48-0  HPLC99%  蟾蜍  蟾蜍二烯羟酸内酯  C24H30O6 414.53-羰基脂蟾毒配基  N/A  HPLC98%  蟾蜍  蟾蜍二烯羟酸内酯  C24H30O4  382.53-表脂蟾毒配基  N/A  HPLC99%  蟾蜍  蟾蜍二烯羟酸内酯  C24H32O4  384.52华蟾毒精-3-丁二酰基-L-精氨酸脂  N/A  HPLC99%  蟾蜍  蟾蜍二烯羟酸内酯  C24H32O4  384.523-表华蟾毒精  N/A  HPLC99% 蟾蜍  蟾蜍二烯羟酸内酯  C26H34O6  442.553-羰基蟾毒灵  N/A  HPLC99%  蟾蜍  蟾蜍二烯羟酸内酯  C24H32O4  384.52嚏根草醇  508-79-2  蟾蜍  蟾蜍二烯羟酸内酯  C24H34O6  418.533-羰基华蟾毒精  N/A HPLC99%  蟾蜍  蟾蜍二烯羟酸内酯 C26H32O  440.54N-甲基五羟色胺  N/A  蟾蜍 蟾蜍二烯羟酸内酯  C11H14N2O 190.25蟾蜍噻咛  N/A  HPLC95%  蟾蜍  蟾蜍二烯羟酸内酯  C12H15N2O3S+  267.32       所有蟾蜍系列现货:蟾毒灵;蟾毒它灵/蟾蜍他灵;华蟾酥毒基;华蟾毒精;华蟾素\华蟾毒它灵;和蟾蜍他灵,日蟾毒它灵;远华蟾毒精;酯蟾毒配基,蟾力苏;南美蟾毒精;去乙酰华蟾毒精;去乙酰华蟾毒它灵;沙蟾蜍精;嚏根草醇;嚏根草配基;伪异沙蟾毒精;脂蟾毒精;19-羟基蟾毒灵;19-氧代华蟾毒它灵;1beta-羟基蟾毒灵;3-表华蟾毒精;3-表日蟾毒它灵;3-表脂蟾毒配基;3-羰基蟾毒灵;3-羰基华蟾毒精;3-羰基脂蟾毒配基;5BETA-羟基蟾毒它灵;5-羟色胺/五羟色胺;7BETA-羟基蟾毒灵;Argentinogenin;N-甲基五羟色胺;蟾蜍噻咛;蟾蜍色胺;蟾蜍特尼定;去氢蟾蜍色胺;华蟾毒精-3-丁二酰基-L-精氨酸脂;远华蟾毒精-3-戊二酰-L-精氨酸脂;海蟾蜍精-3-辛二酰-L-谷酰胺酯(共36种)       ~~~蓝莓系列~~~  矢车菊素-3-O-阿拉伯糖苷  792868-19-0 蓝莓 黄酮类 花色素类 C20H19O10+  419.36矮牵牛素-3-O-葡萄糖苷  71991-88-3  HPLC98%  蓝莓  黄酮类  花色素类  C22H23O12+ 479.41矮牵牛素-3-O-阿拉伯糖苷  N/A  蓝莓  黄酮类  花色素类   C21H21O11+  449.39锦葵素-3-O-阿拉伯糖苷  N/A  蓝莓  黄酮类  花色素类  C22H23O11+  463.41飞燕草素-3-O-阿拉伯糖苷  171370-55-1  HPLC94%  蓝莓  黄酮类  花色素类  C20H19O11+ 435.36芍药素-3-O-半乳糖苷  28148-89-2  HPLC93%  蓝莓 黄酮类  花色素类  C22H23O11+  463.41矮牵牛素-3-O-半乳糖苷  28500-02-9  HPLC95%  蓝莓  黄酮类  花色素类  C22H23O12+  479.41       所有蓝莓系列现货:矮牵牛素-3-O-阿拉伯糖苷;矮牵牛素-3-O-半乳糖苷;矮牵牛素-3-O-葡萄糖苷;锦葵素-3-O-阿拉伯糖苷;锦葵素-3-O-葡萄糖苷;芍药素-3-O-半乳糖苷;矢车菊素-3-O-阿拉伯糖苷;飞燕草素-3-O-阿拉伯糖苷;飞燕草素-3-O-半乳糖苷;飞燕草素-3-O-葡萄糖苷;锦葵色素-3-半乳糖苷;氯化锦葵色素;氯化矮牵牛素(共13种)  ~~~远志系列~~~  对香豆酸甲酯  19367-38-5  HPLC98%   远志  苯丙素类  C10H10O3  178.19       所有远志系列现货:细叶远志皂苷;对香豆酸甲酯;3,6-二芥子酰基蔗糖;黄花远志素A;远志寡精A;远志寡精H;远志寡精J;远志皂苷元;远志蔗糖酯A;远志蔗糖酯B;远志蔗糖酯C/细叶远志苷C;西伯利亚远志口山酮A;西伯利亚远志口山酮B;呫吨酮;3羟基, 1,3,7-, 2-C-β-D-葡萄糖苷;2'-O-beta;-D-芹菜糖基-西伯利亚远志糖A5;西伯利亚远志糖A6;远志山酮III;远志山酮XI;远志酸;远志皂苷B;1,2,3,7-四甲氧基呫吨酮(共20种)   ~~~连翘系列~~~  表松脂素-4-O-葡萄糖苷  24404-49-7  HPLC97%  连翘  木脂素类  C26H32O11 520.53(+)-表松脂素  24404-50-0  HPLC98%  连翘  木脂素类  C20H22O6  358.39       所有连翘系列现货:连翘苷;连翘脂素;连翘酯苷/连翘酯苷A;连翘酯苷B;连翘酯苷E;连翘酯苷F/三糖苯丙素苷;连翘酯苷H;连翘酯苷I;金丝桃素;对羟基苯乙酸甲酯;表松脂素-4-O-葡萄糖苷;(+)-表松脂素-4prime;-O-beta;-D-葡萄糖苷;罗汉松酯素/罗汉松树脂酚;"(+)-松脂醇-β-D-吡喃葡萄糖苷;连翘脂素-4'-O-beta;-D-葡萄糖苷(共14种)  ~~~巴戟天系列~~~  1F-果呋喃糖基耐斯糖,蔗果五糖  59432-60-9  HPLC98%  巴戟天  糖类  C30H52O26  828.72       巴戟天系列现货:耐斯糖;水晶兰苷;异嗪皮啶;1F-果呋喃糖基耐斯糖,蔗果五糖;甲基异茜草素-1-甲醚;茜草素-1-甲醚(共6种)  ~~~杜鹃系列~~~  去甲杜鹃素  14348-16-4  HPLC98%  杜鹃  黄酮类  黄酮类/二氢黄酮类  C16H14O5  286.283       杜鹃系列现货:杜鹃素;去甲杜鹃素;杜鹃醇;裂叶苣荚菜内脂      
  • 26

    2021-05

    远志稀有成分: 远志寡精A;远志寡精H;远志寡精J;远志蔗糖酯A;远志蔗糖酯B;远志蔗糖酯C,                           细叶远志苷C;黄花远志素A;3,6’-二芥子酰基蔗糖;对香豆酸甲酯;细叶远志皂苷远志寡精H   92%  独家新品远志寡精J    98%  独家新品 细叶远志皂苷   98%  克级Tenuifoliose H CAS号: 1147742-13-0 分子式: C61H74O34  分子量: 1351.23g/mol 外  观:白色粉末 分  类: 寡糖酯类 来  源: 远志Tenuifoliose J CAS号: 147742-14-1 分子式: C59H72O33   分子量: 1308.4g/mol 外  观:白色粉末 分  类: 寡糖酯类 来  源: 远志Tenuifolin CAS号: 20183-47-5 分子式: C36H56O12 分子量: 680.82g/mol 外  观:白色粉末 分  类: 萜类 来  源: 远志远志蔗糖酯A   95%   独家新品远志蔗糖酯B 95%  独家新品远志蔗糖酯C;细叶远志苷C 98% 新品Tenuifoliside A CAS号: 139726-35-5 分子式: C31H38O17 分子量: 682.23g/mol 外  观:类白色粉末 分  类: 寡糖酯类 来  源: 远志Tenuifoliside B CAS号: 139726-36-6 分子式: C30H36O17  分子量: 668.6g/mol 外  观:白色粉末 分  类: 寡糖酯类 来  源: 远志Tenuifoliside C CAS号: 139726-37-7 分子式: C35H44O19 分子量: 768.72g/mol 外  观:白色粉末 分  类: 寡糖酯类 来  源: 远志黄花远志素A   95%    独家新品3,6’-二芥子酰基蔗糖 98%  克级对香豆酸甲酯 98%  独家新品Arillanin A CAS号: 154287-47-5 分子式: C33H40O18 分子量: 724.67g/mol 外  观:白色粉末 分  类: 寡糖酯类 来  源: 远志3,6’-disinapoyl sucrose CAS号: 139891-98-8 分子式: C34H42O19 分子量: 754.691g/mol 外  观:淡黄色粉末 分  类: 苯丙素类 来  源: 远志Methyl p-coumarate CAS号: 19367-38-5 分子式: C10H10O3 分子量: 178.19g/mol 外  观:白色粉末 分  类: 寡糖酯类 来  源: 远志黄芩稀有成分: 6-羟基汉黄芩素,5,6,7-三羟基-8-甲氧基黄酮;韧黄芩素I ,5,2-二羟基-6-7-8-三甲基黄酮;                           5,8-二羟基-6,7-二甲氧基黄酮;黄芩新素,黄芩黄酮II,黄芩新素II;木蝴蝶苷B;                           千层纸素A-7-0-β-D-葡萄糖醛酸苷;千层纸素A;黄芩素;                           汉黄芩素;野黄芩素黄芩苷;汉黄芩苷;野黄芩苷,灯盏花乙素5,8-二羟基-6,7-二甲氧基黄酮     新品 6-羟基汉黄芩素; 5,6,7-三羟基-8-甲氧基黄酮  新品 韧黄芩素I; 5,2-二羟基-6-7-8-三甲基黄酮 新品5,8-Dihydroxy-6,7-dimethoxyflavone  CAS号: 73202-52-5 分子式: C17H14O6 分子量: 314.29g/mol 外  观:黄色粉末 分  类: 黄酮类 来  源: 黄芩6-Hydroxywogonin; 5,6,7-trihydroxy-8-methoxyflavone  CAS号: 76844-70-7 分子式: C16H12O6 分子量: 300.27g/mol 外  观:黄色粉末 分  类: 黄酮类 来  源: 黄芩Tenaxin I;5,2'-Dihydroxy-6,7,8-trimethoxyflavone  CAS号: 86926-52-5 分子式: C18H16O7 分子量: 344.32g/mol 外  观:黄色粉末 分  类: 黄酮类 来  源: 黄芩黄芩新素,黄芩黄酮II   98% 新品 黄芩黄酮;半枝莲种素  98% 新品 木蝴蝶苷B     98%  克级Skullcapflavone II CAS号: 55084-08-7 分子式: C19H18O8 分子量: 374.345g/mol 外  观:黄色粉末 分  类: 黄酮类 来  源: 黄芩Rivularin CAS号: 70028-59-0 分子式: C18H16O7  分子量: 344.319g/mol 外  观:黄色粉末 分  类: 黄酮类 来  源: 黄芩Oroxin B CAS号: 114482-86-9 分子式: C27H30O15 分子量: 594.522g/mol 外  观:黄色粉末 分  类: 黄酮类 来  源: 黄芩杜仲稀有成分: 8-羟基松脂醇二葡萄糖苷;橄榄脂素-4-O-葡萄糖苷;(+)-丁香脂素,(+)-丁香树脂酚;                           5'-甲氧基松脂素,皮树脂醇;槲皮素-3-O-桑布双糖苷;桃叶珊瑚苷,杜仲苷8-羟基松脂醇二葡萄糖苷   新品 橄榄脂素-4-O-葡萄糖苷   97%新品 (+)-丁香脂素,(+)-丁香树脂酚  98%8-Hydroxypinoresinol diglucoside  CAS号: 112747-99-6 分子式: C32H42O17 分子量: 698.67g/mol 外  观:白色粉末 分  类: 糖苷类 来  源: 杜仲Olivil 4'-O-glucoside  CAS号: 76880-93-8 分子式: C26H34O12 分子量: 538.55g/mol 外  观:白色粉末 分  类: 糖苷类 来  源: 杜仲(+)-Syringaresinol CAS号: 21453-69-0 分子式: C22H26O8 分子量: 418.44g/mol 外  观:白色粉末 分  类: 木脂素类 来  源: 杜仲菊花稀有成分: 金合欢素-7-O-BEITA-D-(6''-O-丙二酸单酰)-葡萄糖苷;                           芹菜素-7-O-BEITA-D-(6''-O-丙二酸单酰)-葡萄糖 独活稀有成分:茴芹内酯金合欢素-7-O-BEITA-D-(6''-O- 丙二酸单酰)-葡萄糖苷   97% 新品芹菜素-7-O-BEITA-D-(6''-O- 丙二酸单酰)-葡萄糖    新品 茴芹内酯   98%  克级Acacetin-7-O-6"-malonylglucoside  CAS号: N/A 分子式: C25H24O13 分子量: 532.45g/mol 外  观:粉末 来  源: 菊花Apigenin-7-O-6''-Malonylglucoside  CAS号: 86546-87-4 分子式: C24H22O23 分子量: 518.43g/mol 外  观:粉末 来  源: 菊花Pimpinellin CAS号: 131-12-4 分子式: C13H10O5 分子量:246.22g/mol 外  观:粉末 来  源: 独活
  • 03

    2021-03

    辰光生物 人参制备分离 单峰 高纯度对照品

常见问题解答

FAQ 更多+
  • Conditions for Making a Reference Standard Return

    • The product(s) must be unopened and in its original packaging.

    • The product(s) must be stored appropriately, as indicated on the certificate of analysis.

    • In the case the return is being requested due to an error on Herbest’s behalf, we will investigate the root cause of the error. If it is deemed a Herbest error, the product(s) can be returned regardless if it meets the conditions above or not.

    Restocking and Shipping Fees

    • All returns are subject to a 20% restocking fee (unless deemed a Herbest error after investigation).

    • Shipping fees will not be refunded unless the cause for the return was found to be an error on Herbest’s part.

    Return Instructions

    1.  In order to initiate a return, please contact your Herbest representative and provide the       following information:

    • The invoice document number for purchase

    • The lot number(s) for the product(s) intended to be returned

    • Reason for return of the product(s)

    2.  After receiving the information listed above, your herbest representative will generate a  return number  for you to authorize the return.

    3. Once the return number is received, please ship the product(s) with the return number (RTN) referenced on the package. Ensure the product(s) is/are appropriately packaged and stored (i.e. -20oC stored items need to be shipped overnight with an icepack, -80oC items with dry ice). The shipment will be made out to the following address:

    Baoji Herbest Bio-Tech Co.,Ltd

    Attn:[herbest representative]

    BaoTao Road Baoji City Shannxi provience China (zip: 721013)

    Tel:+86-917-8888998

    4. Once the product(s) is/are received and inspected, your representative will issue a return (RTN) document receipt. This document will reflect the funds credited back to you for return of the product(s), minus any applicable restocking or shipping fees. Purchases made via prepayment or NET 30 will have a credit memo for the balance added to their account.

  • Herbest supplies a wide range of phytochemical reference standards to highly specialized and very rare phytochemicals available in extremely small quantities in nature. Our specialtis making all of these products available to the industry with extensive testing and characterization data on each.   Herbest committed to providing our customers with cost effective, high quality reference  tandards. We strive to provide that influence how long it will take to fill any individual order and we hope this information will assist you in understanding our production process and lead time estimates.

    Production Phase 1 :Starting Materials

    The first phase in our production process is to acquire the necessary starting materials. In the case that the compound will be isolated directly from plant material, we must first acquire the relevant biomass. Availability of suitable biomass can vary widely and might require waiting for the next harvest time to maximize the level of the target phytochemical. Growing and harvest conditions can dramatically affect the phytochemical content and in extreme cases, normally prominent target compounds might be missing entirely from a particular harvest. This certainly can complicate the production process. All biomass materials have to be verified for compliance with Herbest quality requirements. Compounds 

    produced synthetically also require properly qualified starting materials. In this case, the commercial availability of the starting materials directly affects our ability to begin the production process.

    Production Phase 2: Production of Target Compound

    Once all the starting materials are received and qualified, we can begin with the production of the target compound. Depending on production prioritization, some materials may have to wait in the production queue before work begins. Both isolation and synthesis productions are typically multistep processes and can take from just a few days to several weeks to complete the whole process. Usually production steps proceed smoothly but sometimes unanticipated technical challenges can arise.  

    Production Phase 3: Quality Testing and Verification

    In this phase, the isolated or synthesized materials are tested and verified. The results must meet the final identity, purity, and quality requirements for the desired product. The data package from this characterization testing is then used to generate the product certificate of analysis (C of A) appropriate to the product grade. The C of A then undergoes a formal review by the Quality Assurance group that operates independently of the chemists performing the tests and preparing the documentation. Oncethe C of A is completed, the material can then go into stock and orders are filled. Usually quality testing and verification is a smooth process but in some cases, material that was promising during Phase 2, will fail final requirements during Phase 3 testing in which case, the process must start over.


    Herbest takes pride in providing its customers with the highest quality natural product reference standards available to the industry.Please contact your Technical Sales Representative with any additional questions you may have.




  • Herbest reference standards are supplied in the powder, crystal, liquid, or oily form. The reference standards may also be supplied in various containment forms including screw top vials, crimp top vials, or sealed ampules (depending on the best form of enclosure determined by Herbest). This can present a recovery challenge when the material clings to the insides of the sample bottle/vial. Proper handling is especially important with small amounts where a greater percentage of the sample may be clinging to the sides of the bottle, screw cap or sto per. Please note that Herbest  does not recommend scraping the vial because sample recovery will be quite low. The following procedure for sample handling will allow for the greatest recoveries and proper dilution. Please note: Oily or liquid standards can be difficult to see and the bottle may appear empty. Examples of such oily standards are: Gingerol, Pinane, Shogaol,Rosin and Bakuchiol.

    Proper Standard Material Recovery and Dilution Procedure:

    1. Use a 5 decimal place (0.00001g) analytical balance for weighing.

    2. Weigh the full sample bottle and vial cap.

    3. Record the exact weight of the full bottle and cap/stopper, in your laboratory notebook.

    4. Remove the screw top of the vial and add about 1mL of the appropriate solvent to the sample bottle and immediately replace the cap/stopper. If the bottle/vial has a crimp top, draw 1ml of the appropriate solvent into a clean syringe (with a rigid needle tip) and pierce the crimp top septum and expel the 1ml of solvent into the vial.

    5. Shake the bottle/vial multiple times over 5 minutes and allow the standard to completely dissolve.

    6. Open the screw/crimp top vial and pipette or pour the dissolved standard from the bottle into a volumetric flask (Crimp top vial will need a crimp top remover tool).

    7. Use an appropriately sized volumetric flask for the sample dilution.

    8. Rinse the bottle/vial and cap/stopper each into the volumetric flask three times.

    9. Completely dry the empty bottle and cap/stopper under nitrogen flow.

    10. Weigh the, now empty, dried bottle and cap/stopper and record the weight in your laboratory notebook. 

    11. Partially fill the volumetric flask with the chosen solvent and mix thoroughly.

    12. Then dilute to the mark and mix again by inverting several times.

    13. Calculate the total weight of standard removed from the bottle/vial by subtracting the dry weight from the original weight.

    14. Calculate the concentration of the diluted standard by dividing the calculated standard weight (from step above) by the volume of the volumetric flask.

    15. Consider portioning off your diluted standard into smaller bottles for later use and to prevent contamination of your standard solution.

    16. Ideally, store the reference standard solution in a cool, dry place out of light per recommended storage conditions found on the Certificate of Analysis and/or label.

    please contact Herbest with any further questions about proper sample handling specific to your use.




  • Herbest is pleased to offer a wide range of reference standards in our phytochemical catalog. All materials listed are supplied either neat or in solution and sold by either a weight or volume quantity. Sometimes our clients have questions about how much product is in each bottle or ampoule. This FAQ should help to address such questions.

    Herbest overfills each unit of product by up to 0.2 mg. This typically means that a 5mg unit may contain between 5.0 and 5.2mg of material; a 10mg unit contains between 10.0 and 10.2mg of material. Products sold by volume are overfilled by 0.1ml.

    The use of accurate weight measurements and fully characterized Primary grade reference standards is crucial for proper quantitative analysis. A five place balance (measuring accurately to 0.00005mg) is required for use in quantitative work.

    Herbest recommends that a “weigh by difference” technique be used when preparing your reference standard solutions for use in the laboratory. Especially when dealing with oily, sticky, fluffy, or static prone compounds, improper handling can result in large losses of material between the original packaging and the prepared solution in your laboratory.Because of potential material loss in transferring by the end user, Herbest does not supply an exact weight value for each unit of reference standard. Even if an exact weight was supplied, the end user must accurately weigh the amount of product that goes into their standard preparation as this minimizes analytical error.

    For special projects, Herbest can supply exact weights per vial when requested by our clients. An additional fee may apply in such cases. Please contact your herbest sales representative for more information if this service would be useful for you.

    Herbest packages all items carefully to minimize any product loss. However, sometimes shipping conditions beyond our control can cause leakage or an otherwise reduced quantity of material. If you suspect that your order contains less material than it should, please first follow the weighing protocol as detailed in  Herbest Recovery and Dilution Procedures. If after using this protocol, you cannot verify the correct quantity, please contact your Herbest sales representative with the weight measurements and any photos showing bottle leakage that might help us in trouble shooting the issue.

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