6-Bromo-4-chlorothieno[2,3-d]pyrimidine CAS 56844-12-3
| CAS No. | 56844-12-3 |
| Molecular Formula | C6H2BrClN2S |
| Molecular Weight | 249.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Bromo-4-chlorothieno[2,3-d]pyrimidine (C6H2BrClN2S) contains a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 249.52 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Bromo-4-chlorothieno[2,3-d]pyrimidine (CAS 56844-12-3), molecular formula C6H2BrClN2S and molecular weight 249.52 g/mol, is a CATO reference standard with documented purity and traceability.
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), 6-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 | C6H2BrClN2S |
| Molecular Weight | 249.52 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 7-Bromo-2-chlorothieno[3,2-d]pyrimidine (CAS 1152475-42-7)
- 6-Bromo-2-chloro-[1,3]thiazolo[5,4-b]pyridine (CAS 1196151-70-8)
- 2-Bromo-5-chlorothiazolo[5,4-b]pyridine (CAS 1198759-26-0)
- 2-Bromo-5-chlorothiazolo[4,5-b]pyridine (CAS 1206248-02-3)
- 2-Bromo-7-chlorothiazolo[5,4-c]pyridine (CAS 1206248-68-1)
- 2-Bromo-7-chlorothiazolo[4,5-b]pyridine (CAS 1206249-84-4)
- 2-Bromo-6-chlorothiazolo[4,5-c]pyridine (CAS 1206250-70-5)
- 4-Bromo-6-chlorobenzo[c][1,2,5]thiadiazole (CAS 1215206-49-7)
Recommended Standards
- 6-Bromo-2-chlorothiazolo[4,5-b]pyridine (CAS 960535-44-8)
- 6-Bromo-4-chlorothieno[3,2-d]pyrimidine, 97% (CAS 225385-03-5)
- 6-(Trichloromethyl)-2,3-dihydro-1h-inden-1-one (CAS 2007915-92-4)
- 1-(2-Bromo-1-methoxyethyl)-3-chlorobenzene (CAS 109332-87-8)
- Fumaryl chloride (CAS 627-63-4)
- 2,2,3,4,4,4-Hexafluorobutyl acrylate 1h,1h,3h-hexafluorobutyl acrylate acrylic acid 2,2,3,4,4,4-hexafluoro-butyl ester HFBA 54052-90-3 (CAS 54052-90-3)
- (2-Chloro-3-(difluoromethyl)-6-methylpyridin-4-yl)methanol (CAS 1804664-58-1)
- Methyl (s)-1'-(3-methoxypropyl)-2'-oxo-3,4-dihydro-1h-spiro[naphthalene-2,3'-piperidine]-6-carboxylate (CAS 2028328-57-4)
- 2-Chloro-5,6,7,8-tetrahydroquinoxaline (CAS 155535-20-9)
- Ethyl (2-chloroacetyl)(methyl)carbamate (CAS 6378-52-5)
- (1R,2S)-2-(methoxycarbonyl)cyclobutane-1-carboxylic acid (CAS 88335-89-1)
- tert-Butyl 1-benzyl-6,6-dimethylhexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate (CAS 2266594-89-0)
- Alclofenac (CAS 22131-79-9)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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