5-bromo-4-chlorothieno[2,3-d]pyrimidine CAS 814918-95-1
| CAS No. | 814918-95-1 |
| Molecular Formula | C6H10BrClN2S |
| Molecular Weight | 257.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-bromo-4-chlorothieno[2,3-d]pyrimidine (CAS 814918-95-1), molecular formula C6H10BrClN2S and molecular weight 257.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, 5-bromo-4-chlorothieno[2,3-d]pyrimidine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 257.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 5-bromo-4-chlorothieno[2,3-d]pyrimidine 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 | C6H10BrClN2S |
| Molecular Weight | 257.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related bromo Standards
- 6-bromo-2-chloro-thieno[3,2-d]pyrimidine (CAS 1388050-36-9)
- 6-bromo-2-chloro-thieno[2,3-d]pyrimidine (CAS 1782440-51-0)
- 7-bromo-4-chlorothieno[3,2-d]pyrimidine (CAS 31169-27-4)
- 2-bromo-1-(3-chloro-2-fluorophenyl)ethan-1-one (CAS 1192313-64-6)
- 7-bromo-2-chloro-5-fluoro-1H-benzimidazole (CAS 1239720-18-3)
- 1-(3-bromo-5-fluorophenyl)-2-chloroethanone (CAS 1260892-53-2)
- 6-Bromo-4-chloro-1-methylphthalazine (CAS 1011291-79-4)
- 6-Bromo-1-chloro-4-methylphthalazine (CAS 1011291-80-7)
Recommended Standards
- 2-Chloro-4-(dimethylphosphinyl)-6-(trifluoromethyl)pyridine (CAS 2680543-09-1)
- 2-Chloro-3-(dimethylphosphinyl)-5-(trifluoromethyl)pyridine (CAS 2703780-72-5)
- 2,4,8-trichloro-5-methyl-quinazoline (CAS 1602418-43-8)
- 2,3-Difluoro-5-nitrobenzene-1-sulfonyl chloride (CAS 1156136-97-8)
- N-Isopropyl 5-nitropicolinamide (CAS 1437794-85-8)
- 4-Morpholino-2-phenylbutanoic acid (CAS 858712-33-1)
- 2-Chloro-4-(piperazin-1-yl)-6-propoxy-1,3,5-triazine (CAS 1378259-46-1)
- Vonoprazan Impurity 281 (CAS 3058423-29-0)
- Ethyl 4-(2-aminoethoxy)benzoate hydrobromide (CAS 61508-41-6)
- Potassium trifluoro(quinolin-7-yl)borate (CAS 1411985-64-2)
- N-Ethyl-1-(2-thienyl)cyclohexanamine oxalate (CAS 1211474-29-1)
- 1-Bromodibenzo[b,e][1,4]dioxine (CAS 105908-71-2)
- Ethyl 3-(N-butylacetamido)propanoate (CAS 52304-36-6)
- Insulin degludec (CAS 844439-96-9)
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