SMILES string
N(Cc2nc3c(nc(nc3O)N)nc2)(C)c1ccc(cc1)C(=O)NC(CCC(=O)O)C(=O)O
InChI
1S/C20H21N7O6/c1-27(9-11-8-22-16-15(23-11)18(31)26-20(21)25-16)12-4-2-10(3-5-12)17(30)24-13(19(32)33)6-7-14(28)29/h2-5,8,13H,6-7,9H2,1H3,(H,24,30)(H,28,29)(H,32,33)(H3,21,22,25,26,31)
InChI key
HLIXOCXUWGDBNP-UHFFFAOYSA-N
grade
pharmaceutical primary standard
API family
methotrexate
manufacturer/tradename
EDQM
application(s)
pharmaceutical (small molecule)
format
neat
storage temp.
2-8°C
General description
This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the Issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.
Application
Methotrexate impurity C EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.
Packaging
The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.
Other Notes
Sales restrictions may apply.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Skin Irrit. 2
存储类别
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Enhancement of recovery from psychiatric illness by methylfolate.
T Bottiglieri et al.
Lancet (London, England), 336(8730), 1579-1580 (1990-12-22)
J Holm et al.
International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition, 54(2-3), 195-197 (1984-01-01)
N10-methylfolate acted as a potent competitive inhibitor of high-affinity [3H] folate binding in human leukocytes, while methotrexate had no effect. Furthermore, folate binding changed into a non-cooperative type in the presence of N10-methylfolate. Hence, in qualitative and quantitative respects, the
L E Parker et al.
Annals of clinical and laboratory science, 12(3), 216-222 (1982-05-01)
The anticonvulsant diphenylhydantion (DPH) causes embryonic folate antagonism in the animal model of the fetal hydantoin syndrome. Thus, comparisons were made between the metabolic effects of the teratogens DPH and 9-methyl pteroylglutamic acid (9-methyl PGA), a folate antagonist. The DPH
An impurity, N10-methylfolate, associated with methotrexate inhibits folate binding in milk and serum.
J Holm et al.
Biochemical pharmacology, 29(22), 3109-3112 (1980-11-15)
P S Godfrey et al.
Lancet (London, England), 336(8712), 392-395 (1990-08-18)
41 (33%) of 123 patients with acute psychiatric disorders (DSM III diagnosis of major depression or schizophrenia) had borderline or definite folate deficiency (red-cell folate below 200 micrograms/l) and took part in a double-blind, placebo-controlled trial of methylfolate, 15 mg
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