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A7019

Sigma-Aldrich

(±)Amethopterin hydrate

≥95%, powder

Synonim(y):

4-Amino-10-methylfolic acid, DL-4-Amino-N10-methylpteroylglutamic acid, MTX, Methylaminopterin

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About This Item

Wzór empiryczny (zapis Hilla):
C20H22N8O5 · xH2O
Numer CAS:
60388-53-6
Masa cząsteczkowa:
454.44 (anhydrous basis)
Numer WE:
262-213-7
Numer MDL:
MFCD00150845
Kod UNSPSC:
12352200
Identyfikator substancji w PubChem:
24891167

Próba

≥95%

Postać

powder

kolor

yellow to yellow with an orange cast

rozpuszczalność

H2O: insoluble

temp. przechowywania

−20°C

ciąg SMILES

O.CN(Cc1cnc2nc(N)nc(N)c2n1)c3ccc(cc3)C(=O)NC(CCC(O)=O)C(O)=O

informacje o genach

human ... DHFRP1(573971) , FPGS(2356) , SLC19A1(6573) , TYMS(7298)
mouse ... Dhfr(13361)
rat ... Dhfr(24312)

Zastosowanie

Amethopterin is a folic acid antagonist and potent anticancer agent. Amethopterin blocks DNA synthesis by preventing the production of tetrahydrofolate cofactors which are required to make thymidine. Amethopterin is actively transported into cells by the folate transporter where it is converted to a high molecular weight polyglutamate metabolite by folylpolyglutamate synthase, a dihydrofolate reductase inhibitor.

Działania biochem./fizjol.

Amethopterin is a folic acid antagonist and potent anticancer agent. Blocks DNA synthesis by blocking the production of tetrahydrofolate covactors required for the synthesis of thymidine. Amethopterin is actively transported into cells by the folate transporter. In the cell, it is converted to a high molecular weight polyglutamate metabolite by folylpolyglutamate synthase that, in turn, binds to dihydrofolate reductase and inhibits its activity. Amethopterin-polyglutamate is degraded intracellularly by γ-glutamyl hydrolase.

Rekonstytucja

Add a minimal amount of 0.1 N NaOH to solubilize, then dilute in neutral buffer or saline. Diluted stock is stable for 1 week refrigerated and for 1 month frozen at −20 °C. References: Cell & Tissue Culture: Laboratory Procedures, Chapter 27, Page 27D:3.2 (A. Doyle, et al., eds, John Wiley) and Cell Biology: A Laboratory Handbook, vol. 2, page 417 (Julio E. Celis, ed., Academic Press).
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Piktogramy

Skull and crossbonesHealth hazard
GHS06,GHS08

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

H301,H315,H319,H360

Zwroty wskazujące środki ostrożności

P201 - P301 + P310 - P305 + P351 + P338 - P308 + P313

Klasyfikacja zagrożeń

Acute Tox. 3 Oral - Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2

Kod klasy składowania

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 3

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certyfikaty analizy (CoA)

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Odwiedź Bibliotekę dokumentów

Roy Fleischmann et al.
Annals of the rheumatic diseases, 74(6), 1132-1137 (2014-08-22)
Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) is used instead of erythrocyte sedimentation rate (DAS28-ESR) to assess rheumatoid arthritis disease activity; however, values for remission and low disease activity (LDA) for DAS28-CRP have not been validated.
Christian S Kaas et al.
Biotechnology journal, 10(7), 1081-1089 (2015-05-13)
Coagulation factor VIII (FVIII) is one of the most complex biopharmaceuticals due to the large size, poor protein stability and extensive post-translational modifications. As a consequence, efficient production of FVIII in mammalian cells poses a major challenge, with typical yields
Anna-Birgitte Aga et al.
Annals of the rheumatic diseases, 74(2), 381-388 (2013-11-29)
To investigate whether baseline disease activity levels and responses in patients with rheumatoid arthritis (RA) changed during the period 2000-2010. Data were provided by the Norwegian disease-modifying antirheumatic drug (NOR-DMARD) study. Patients with inflammatory joint diseases starting new treatment with
Axel Finckh et al.
Arthritis research & therapy, 16(5), 458-458 (2014-10-16)
Calcium pyrophosphate deposition (CPPD) may cause severe arthropathy, major joint destruction and treatment options are limited. The aim of this study was to test the therapeutic efficacy of methotrexate (MTX) in chronic or recurrent CPPD arthropathy. Patients with CPPD arthropathy
Giovanni L Mancardi et al.
Neurology, 84(10), 981-988 (2015-02-13)
To assess in multiple sclerosis (MS) the effect of intense immunosuppression followed by autologous hematopoietic stem cells transplantation (AHSCT) vs mitoxantrone (MTX) on disease activity measured by MRI. We conducted a multicenter, phase II, randomized trial including patients with secondary
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