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API Impurities

Methotrexate Impurity (Stage-3)

Reference StandardIn stock

Methotrexate Impurity (Stage-3) (CAS 2378-95-2) supplier Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Methotrexate Impurity (Stage-3) chemical structure
CAS number2378-95-2
FormulaC17H24N2O5
Molar mass336.4 g/mol
Physical formSolid
HS code38229090
InChIKeyWBYNXAAEBPJETG-AWEZNQCLSA-N
IUPAC namediethyl (2S)-2-[[4-(methylamino)benzoyl]amino]pentanedioate

About Methotrexate Impurity (Stage-3)

Analytical teams working on Methotrexate use Methotrexate Impurity (Stage-3) as a qualified comparison standard. Identity at a glance (Reference Standard): CAS 2378-95-2, formula C17H24N2O5 and molar mass 336.4 g/mol. It is handled as a solid.

Where it is used

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Safe handling

It carries the GHS signal word Warning (H302+H312+H332, H302, H312 and H332), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg, 100 mg and 250 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Methotrexate

See every impurity, metabolite and related compound we list for this API.

Methotrexate standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of Methotrexate Impurity (Stage-3)
Product nameMethotrexate Impurity (Stage-3)
Catalogue numberZX-004947
CAS number2378-95-2
IUPAC namediethyl (2S)-2-[[4-(methylamino)benzoyl]amino]pentanedioate
Molecular formulaC17H24N2O5
Molar mass336.4 g/mol
Exact mass336.1685
GradeReference Standard
Physical formSolid
XLogP32.1
H-bond donors / acceptors2 / 6
Topological polar surface area93.7 Ų
HS code38229090
InChIKeyWBYNXAAEBPJETG-AWEZNQCLSA-N
SMILESCCOC(=O)CC[C@@H](C(=O)OCC)NC(=O)C1=CC=C(C=C1)NC
PubChem CID75413
SynonymsN-(4-N-Methylaminobenzoyl)-L-glutamic acid diethyl ester, 1,5-Diethyl N-[4-(methylamino)benzoyl]-L-glutamate, (S)-Diethyl 2-(4-(methylamino)benzamido)pentanedioate, Diethyl N-(p-N-methylaminobenzoyl)glutamate, Diethyl N-[4-(methylamino)benzoyl]-L-glutamate, Diethyl N-(4-(methylamino)benzoyl)-L-glutamate, N-(p-Methylaminobenzoyl)glutamic acid diethyl ester, L-Glutamic acid, N-(4-(methylamino)benzoyl)-, diethyl ester, Glutamic acid, N-(p-(methylamino)benzoyl)-, diethyl ester, L-, L-Glutamic acid, N-(4-(methylamino)benzoyl)-, 1,5-diethyl ester, L-Glutamic acid, N-[4-(methylamino)benzoyl]-, 1,5-diethyl ester, L-Glutamic acid, N-[4-(methylamino)benzoyl]-, diethyl ester

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Warning

  • H302+H312+H332Harmful if swallowed, in contact with skin or if inhaled
  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H332Harmful if inhaled
  • H341Suspected of causing genetic defects
  • H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P318, P321, P330, P362 + P364, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Methotrexate Impurity (Stage-3)
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Methotrexate Impurity (Stage-3)

Which CAS number identifies Methotrexate Impurity (Stage-3)?
Methotrexate Impurity (Stage-3) is registered under CAS 2378-95-2. You may also see it listed as N-(4-N-Methylaminobenzoyl)-L-glutamic acid diethyl ester, 1,5-Diethyl N-[4-(methylamino)benzoyl]-L-glutamate, (S)-Diethyl 2-(4-(methylamino)benzamido)pentanedioate. Our catalogue number for this item is ZX-004947.
What are the formula and molar mass of Methotrexate Impurity (Stage-3)?
For Methotrexate Impurity (Stage-3), its formula is C17H24N2O5 and its molar mass is 336.4 g/mol. The systematic (IUPAC) name is diethyl (2S)-2-[[4-(methylamino)benzoyl]amino]pentanedioate. InChIKey WBYNXAAEBPJETG-AWEZNQCLSA-N lets you match it in any structure database.
How is Methotrexate Impurity (Stage-3) used in pharmaceutical QC?
Methotrexate Impurity (Stage-3) is a characterised reference material linked to Methotrexate. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Methotrexate Impurity (Stage-3)?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Methotrexate Impurity (Stage-3)?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Methotrexate Impurity (Stage-3) to my country?
Yes. Because Methotrexate Impurity (Stage-3) is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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