产品名称
氨基蝶呤, certified reference material, pharmaceutical secondary standard
InChI key
TVZGACDUOSZQKY-LBPRGKRZSA-N
InChI
1S/C19H20N8O5/c20-15-14-16(27-19(21)26-15)23-8-11(24-14)7-22-10-3-1-9(2-4-10)17(30)25-12(18(31)32)5-6-13(28)29/h1-4,8,12,22H,5-7H2,(H,25,30)(H,28,29)(H,31,32)(H4,20,21,23,26,27)/t12-/m0/s1
SMILES string
Nc1nc(N)c2nc(CNc3ccc(cc3)C(=O)N[C@@H](CCC(O)=O)C(O)=O)cnc2n1
grade
certified reference material
pharmaceutical secondary standard
agency
traceable to USP (Referencew Standard (1414025))
CofA
current certificate can be downloaded
packaging
pkg of 100 mg
ε (extinction coefficient)
24,500 at 282 nm in 0.1 M NaOH at 1 M
25,700 at 261 nm in 0.1 M NaOH at 1 M
8,100 at 373 nm in 0.1 M NaOH at 1 M
application(s)
pharmaceutical
storage temp.
-10 to -25°C
Quality Level
Biochem/physiol Actions
与二氢叶酸还原酶结合并抑制其活性的叶酸拮抗剂。
叶酸拮抗剂。氨基蝶呤是由叶酸转运蛋白运输至细胞内的。在细胞内，它被叶酰聚谷氨酸合酶转化为一种高分子量的聚谷氨酸盐代谢物，该产物又与二氢叶酸还原酶结合并抑制其活性。氨基蝶呤-聚谷氨酸盐经 γ-谷氨酰基水解酶作用发生细胞内降解。
Other Notes
比甲氨喋呤更有效，但毒性也更强。
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
Analysis Note
These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.
General description
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
法规信息
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