Rhodanine-3-acetic acid

Name: Rhodanine-3-acetic acid
Brand: Zemixal
SKU: ZX-029283

Reference StandardAvailable on request

Buy Rhodanine-3-acetic acid (CAS 5718-83-2) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-029283.

Pack sizes

Rhodanine-3-acetic acid chemical structure

CAS number5718-83-2

FormulaC₅H₅NO₃S₂

Molar mass191.2 g/mol

Physical formSolid

HS code38229090

InChIKeyJGRMXPSUZIYDRR-UHFFFAOYSA-N

IUPAC name2-(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)acetic acid

About Rhodanine-3-acetic acid

Rhodanine-3-acetic acid belongs to the Epalrestat reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 5718-83-2, formula C5H5NO3S2 and molar mass 191.2 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

It carries the GHS signal word Warning (H315, H319 and H335), 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. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Epalrestat

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

Epalrestat 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 Rhodanine-3-acetic acid
Product name	Rhodanine-3-acetic acid
Catalogue number	ZX-029283
CAS number	5718-83-2
IUPAC name	2-(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)acetic acid
Molecular formula	C₅H₅NO₃S₂
Molar mass	191.2 g/mol
Exact mass	190.9711
Grade	Reference Standard
Physical form	Solid
XLogP3	0.4
H-bond donors / acceptors	1 / 5
Topological polar surface area	115 Å²
HS code	38229090
InChIKey	JGRMXPSUZIYDRR-UHFFFAOYSA-N
SMILES	C1C(=O)N(C(=S)S1)CC(=O)O
PubChem CID	79793
Synonyms	3-Rhodanineacetic Acid, (4-Oxo-2-thioxo-thiazolidin-3-yl)acetic acid, 3-Thiazolidineacetic acid, 4-oxo-2-thioxo-, 3-(Carboxymethyl)rhodanine, Rhodanine-N-acetic acid, 2-(4-oxo-2-thioxothiazolidin-3-yl)acetic acid, 4-Oxo-2-thioxo-3-thiazolidinylacetic acid, N-(Carboxymethyl)rhodanine, 4-Oxo-2-thioxo-3-thiazolidineacetic acid, (4-Oxo-2-thioxo-1,3-thiazolidin-3-yl)acetic acid, 2-(4-oxo-2-thioxo-thiazolidin-3-yl)acetic acid

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

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 Rhodanine-3-acetic 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 Rhodanine-3-acetic acid

Which CAS number identifies Rhodanine-3-acetic acid?

Rhodanine-3-acetic acid is registered under CAS 5718-83-2. You may also see it listed as 3-Rhodanineacetic Acid, (4-Oxo-2-thioxo-thiazolidin-3-yl)acetic acid, 3-Thiazolidineacetic acid, 4-oxo-2-thioxo-. Our catalogue number for this item is ZX-029283.

What are the formula and molar mass of Rhodanine-3-acetic acid?

For Rhodanine-3-acetic acid, its formula is C5H5NO3S2 and its molar mass is 191.2 g/mol. The systematic (IUPAC) name is 2-(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)acetic acid. InChIKey JGRMXPSUZIYDRR-UHFFFAOYSA-N lets you match it in any structure database.

How is Rhodanine-3-acetic acid used in pharmaceutical QC?

Rhodanine-3-acetic acid is a characterised reference material linked to Epalrestat. 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 Rhodanine-3-acetic 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 Rhodanine-3-acetic 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 Rhodanine-3-acetic acid to my country?

Yes. Because Rhodanine-3-acetic 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.

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