5-Iodo-1,3,4-thiadiazole-2-carboxylic acid CAS 1936218-48-2
| CAS No. | 1936218-48-2 |
| Molecular Formula | C3HIN2O2S |
| Molecular Weight | 256.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
5-Iodo-1,3,4-thiadiazole-2-carboxylic acid (CAS 1936218-48-2), molecular formula C3HIN2O2S and molecular weight 256.02 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Iodo-1,3,4-thiadiazole-2-carboxylic acid (C3HIN2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 256.02 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C3HIN2O2S |
| Molecular Weight | 256.02 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iodo Standards
- 1-Iodo-2-trifluoromethylsulfanyl-ethane (CAS 1206524-64-2)
- 2-Iodo-1,5-naphthyridine (CAS 152563-02-5)
- 4-Iodo-1,5-naphthyridine (CAS 152563-03-6)
- methyl 5-iodo-1H-pyrazole-3-carboxylate (CAS 1533442-31-7)
- 2-Iodo-1,6-naphthyridine (CAS 944804-84-6)
- Ethyl 3-iodo-2,2-dimethylpropanoate (CAS 1013116-55-6)
- 4-Iodo-5-methoxypyridin-3-amine (CAS 1045855-66-0)
- 3-iodo-2-methoxypyridin-4-amine (CAS 1190198-21-0)
Recommended Standards
- 1-(4-Bromopyridin-2-yl)-2,2,2-trifluoroethan-1-ol (CAS 1934429-61-4)
- 4-Bromo-1-(2,2,2-trifluoroethyl)pyridin-2(1h)-one (CAS 1936350-19-4)
- 3-Bromo-4-(trifluoromethoxy)aniline (CAS 191602-54-7)
- 6-Bromo-5-(trifluoromethyl)pyridine-2,3-diamine (CAS 1936482-85-7)
- (3,3-difluorocyclohexyl)methanesulfonyl chloride (CAS 1691933-77-3)
- 1-(3-Bromo-5-fluorophenyl)-4-((tert-butyldimethylsilyl)oxy)piperidine (CAS 1704073-47-1)
- 3-(2,6-Difluoro-4-methoxyphenyl)-3-methylbutan-1-amine (CAS 1526325-30-3)
- 6-Methoxy-2-methylquinolin-4(1H)-one (CAS 58596-37-5)
- Methyl 2-bromo-2-((tert-butoxycarbonyl)amino)acetate (CAS 138219-39-3)
- tert-Butyl 4-(n-methylhydrazinecarbonyl)piperazine-1-carboxylate (CAS 1432680-23-3)
- 4-methoxybenzothiophen-2-amine (CAS 1158212-24-8)
- 6-(Trifluoromethyl)indole (CAS 13544-43-9)
- 3-Methyl-1H-pyrazolo[3,4-d]pyrimidin-6(5H)-one (CAS 154386-32-0)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com