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API Impurities

D-Thioproline

Reference StandardAvailable on request

D-Thioproline (CAS 45521-09-3) supplier Zemixal: C4H7NO2S, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.

Pack sizes
D-Thioproline chemical structure
CAS number45521-09-3
FormulaC4H7NO2S
Molar mass133.17 g/mol
Physical formSolid
HS code38229090
InChIKeyDZLNHFMRPBPULJ-GSVOUGTGSA-N
IUPAC name(4S)-1,3-thiazolidine-4-carboxylic acid

About D-Thioproline

D-Thioproline is part of the Zemixal API Impurities range. Identity at a glance (Reference Standard): CAS 45521-09-3, formula C4H7NO2S and molar mass 133.17 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

Classified under GHS with signal word Danger and hazard statements H301, H312, H315 and H319. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of D-Thioproline
Product nameD-Thioproline
Catalogue numberZX-045855
CAS number45521-09-3
IUPAC name(4S)-1,3-thiazolidine-4-carboxylic acid
Molecular formulaC4H7NO2S
Molar mass133.17 g/mol
Exact mass133.0197
GradeReference Standard
Physical formSolid
XLogP3-2.3
H-bond donors / acceptors2 / 4
Topological polar surface area74.6 Ų
HS code38229090
InChIKeyDZLNHFMRPBPULJ-GSVOUGTGSA-N
SMILESC1[C@@H](NCS1)C(=O)O
PubChem CID198253
SynonymsD-Thiazolidine-4-carboxylic acid, Timonacic, (S)-, (S)-4-Thiazolidinecarboxylic acid, 4-Thiazolidinecarboxylic acid, (4S)-, 4-Thiazolidinecarboxylic acid, (S)-, (4S)-4-thiazolidinecarboxylic acid, Acide D thiazolidine carboxylique-4, (S)-(+)-4-thiazolidinecarboxylic acid, L-Thiazolidine-4-carboxylic acid, (S)-Thiazolidine-4-carboxylic acid, D-Thiaproline, 4-Thiazolidinecarboxylic acid, D-

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

Safety and GHS hazards

GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H301Toxic if swallowed
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, 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 D-Thioproline
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 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 D-Thioproline

Which CAS number identifies D-Thioproline?
D-Thioproline is registered under CAS 45521-09-3. You may also see it listed as D-Thiazolidine-4-carboxylic acid, Timonacic, (S)-, (S)-4-Thiazolidinecarboxylic acid. Our catalogue number for this item is ZX-045855.
What are the formula and molar mass of D-Thioproline?
For D-Thioproline, its formula is C4H7NO2S and its molar mass is 133.17 g/mol. The systematic (IUPAC) name is (4S)-1,3-thiazolidine-4-carboxylic acid. InChIKey DZLNHFMRPBPULJ-GSVOUGTGSA-N lets you match it in any structure database.
What grade and pack sizes are available for D-Thioproline?
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 D-Thioproline?
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 D-Thioproline to my country?
Yes. Because D-Thioproline 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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