Citraconic acid

Name: Citraconic acid
Brand: Zemixal
SKU: ZX-031391

Reference StandardAvailable on request

Order Citraconic acid (CAS 498-23-7) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes

CAS number498-23-7

FormulaC₅H₆O₄

Molar mass130.1 g/mol

Physical formSolid

HS code38229090

InChIKeyHNEGQIOMVPPMNR-IHWYPQMZSA-N

IUPAC name(Z)-2-methylbut-2-enedioic acid

About Citraconic acid

Citraconic acid is supplied by Zemixal as a characterised reference material for N methylpyrrolidone analysis. For your records (Reference Standard), the material is defined by CAS 498-23-7, formula C5H6O4 and molar mass 130.1 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

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

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for N methylpyrrolidone

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

N methylpyrrolidone standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Citraconic acid
Product name	Citraconic acid
Catalogue number	ZX-031391
CAS number	498-23-7
IUPAC name	(Z)-2-methylbut-2-enedioic acid
Molecular formula	C₅H₆O₄
Molar mass	130.1 g/mol
Exact mass	130.0266
Grade	Reference Standard
Physical form	Solid
XLogP3	-0.1
H-bond donors / acceptors	2 / 4
Topological polar surface area	74.6 Å²
HS code	38229090
InChIKey	HNEGQIOMVPPMNR-IHWYPQMZSA-N
SMILES	C/C(=C/C(=O)O)/C(=O)O
PubChem CID	643798
Synonyms	2-methylmaleic acid, cis-Methylbutenedioic acid, (Z)-2-Methyl-2-butenedioic acid, (2Z)-2-methylbut-2-enedioic acid, Methyl-maleinsaeure, alpha-methylmaleic acid, cis-2-methylbutenedioic acid, 2-methyl-2Z-butenedioic acid, 2-butenedioic acid, 2-methyl-, (2Z)-, Maleic acid, methyl-, 2-Methylmaleate, Kyselina citrakonova

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

Safety and GHS hazards

Irritant or harmful

Signal word Warning

H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, 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 Citraconic acid
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

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

Questions about Citraconic acid

Which CAS number identifies Citraconic acid?

Citraconic acid is registered under CAS 498-23-7. You may also see it listed as 2-methylmaleic acid, cis-Methylbutenedioic acid, (Z)-2-Methyl-2-butenedioic acid. Our catalogue number for this item is ZX-031391.

What are the formula and molar mass of Citraconic acid?

For Citraconic acid, its formula is C5H6O4 and its molar mass is 130.1 g/mol. The systematic (IUPAC) name is (Z)-2-methylbut-2-enedioic acid. InChIKey HNEGQIOMVPPMNR-IHWYPQMZSA-N lets you match it in any structure database.

How is Citraconic acid used in pharmaceutical QC?

Citraconic acid is a characterised reference material linked to N methylpyrrolidone. 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 Citraconic acid?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Citraconic acid?

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 Citraconic acid to my country?

Yes. Because Citraconic acid 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.

More N methylpyrrolidone standards

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