Methyl 4-bromo-2-chlorothiazole-5-carboxylate CAS 1000575-16-5
| CAS No. | 1000575-16-5 |
| Molecular Formula | C5H3BrClNO2S |
| Molecular Weight | 256.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.50 g/mol gives Methyl 4-bromo-2-chlorothiazole-5-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 4-bromo-2-chlorothiazole-5-carboxylate (CAS 1000575-16-5), molecular formula C5H3BrClNO2S and molecular weight 256.50 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H3BrClNO2S, Methyl 4-bromo-2-chlorothiazole-5-carboxylate contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 256.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 4-bromo-2-chlorothiazole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H3BrClNO2S |
| Molecular Weight | 256.50 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 2-bromo-5-chlorothiazole-4-carboxylate (CAS 1053655-63-2)
- Methyl 5-bromo-2-chlorothiazole-4-carboxylate (CAS 1784255-01-1)
- 4-Bromo-3-chloro-1H-indazole-6-carbonitrile (CAS 1000342-57-3)
- 3-Bromo-8-chloroimidazo[1,2-a]pyridine-6-carbonitrile (CAS 1221791-70-3)
- 3-Bromo-4-chloro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 1262411-25-5)
- 7-Bromo-2-chloro-1H-benzo[d]imidazole-5-carbonitrile (CAS 1388068-26-5)
- 5-Bromo-6-chloro-1H-indazole-3-carbonitrile (CAS 1956331-76-2)
- 8-Bromo-5-chloroimidazo[1,5-a]pyridine-6-carbonitrile (CAS 2585650-35-5)
Recommended Standards
- LDCA (CAS 349106-80-5)
- 4-Bromopyridine-3-sulfonyl chloride (CAS 1060808-89-0)
- 2-Bromopyridine-3-sulfonyl chloride (CAS 1060811-59-7)
- 2,2,2-Trichloro-N-(4-fluorophenyl)acetamide (CAS 1744-18-9)
- 5-Chloro-4-methyl-1H-benzo[d]imidazole-2-carboxylic acid (CAS 827042-59-1)
- tert-butyl 2,2-dioxo-3-oxa-2λ⁶-thia-1-azaspiro[4.4]nonane-1-carboxylate (CAS 2306264-26-4)
- 3-Amino-6-bromo-2H-chromen-2-one (CAS 33259-36-8)
- 2-(1,2,3,4-Tetrahydro-naphthalen-1-yl)-2H-indazole-3-carboxylic acid (CAS 1197238-45-1)
- 1-Methyl-2-oxo-2,3-dihydro-1H-indole-5-carboxylic acid (CAS 167627-05-6)
- 4-Bromo-2-(trifluoromethoxy)benzaldehyde (CAS 220996-80-5)
- 2-(Ethylsulfonyl)-1-morpholinoethanone (CAS 1707391-61-4)
- 1-(4-(Hexylamino)phenyl)ethan-1-one (CAS 197172-63-7)
- Bis[bis(trifluoromethanesulfonyl)imide]zinc (CAS 168106-25-0)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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