4-chloro-5,6-dimethyl-2-(trifluoromethyl)thieno[2,3-d]pyrimidine CAS 1146290-49-4
| CAS No. | 1146290-49-4 |
| Molecular Formula | C9H14ClF3N2S |
| Molecular Weight | 274.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-chloro-5,6-dimethyl-2-(trifluoromethyl)thieno[2,3-d]pyrimidine (C9H14ClF3N2S) contains a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-chloro-5,6-dimethyl-2-(trifluoromethyl)thieno[2,3-d]pyrimidine (CAS 1146290-49-4), molecular formula C9H14ClF3N2S and molecular weight 274.73 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.
CATO manufactures 4-chloro-5,6-dimethyl-2-(trifluoromethyl)thieno[2,3-d]pyrimidine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H14ClF3N2S |
| Molecular Weight | 274.73 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.) | 1989 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Methyl 5-(chlorosulfonyl)-2,3-dihydro-1H-indene-2-carboxylate (CAS 600166-73-2)
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- methyl 1-[4-(chlorosulfonyl)phenyl]cyclopropane-1-carboxylate (CAS 600134-92-7)
- 4-(Chlorosulfonyl)-5,6,7,8-tetrahydronaphthalene-2-carboxylic acid (CAS 926202-14-4)
- 6-Chloro-3-phenylpyridin-2-amine (CAS 69214-19-3)
- 3-Isobutyramidopropanoic acid (CAS 126424-92-8)
- 2,6-Dichloro-1,8-naphthyridine-3-carbonitrile (CAS 1330583-69-1)
- (4-Chloro-3-methylphenyl)hydrazine hydrochloride (CAS 221687-08-7)
- 5-(2-Ethylhexyl)-2,2'-bithiophene (CAS 956897-76-0)
- 3-Chloro-4-fluoro-5-hydroxyphenylboronic acid (CAS 1379466-81-5)
- Spiro[4.5]dec-3-en-2-one (CAS 62167-49-1)
- (2-Bromo-3-(trifluoromethyl)phenyl)methanamine hydrochloride (CAS 1214339-18-0)
- Salvianolic acid B (CAS 115939-25-8)
- D-[Phe]6-Semaglutide (CAS CATO-CPTD788633)
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