2,4-Dichloro-5,6-dihydrothieno[2,3-d]pyrimidine CAS 74901-61-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 74901-61-4 |
| Molecular Formula | C6H4Cl2N2S |
| Molecular Weight | 207.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2,4-Dichloro-5,6-dihydrothieno[2,3-d]pyrimidine (CAS 74901-61-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H4Cl2N2S. Molecular weight: 207.08 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H4Cl2N2S |
| Molecular Weight | 207.08 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 1,3-Dichloro-5,6-dihydro-4H-cyclopenta[c]thiophen-4-one (CAS 7687-79-8)
- 2,4-Dichloro-5H,7H-thieno[3,4-d]pyrimidine (CAS 74901-71-6)
- 2,4-Dichloro-6,7-dihydrothieno[3,2-d]pyrimidine (CAS 74901-69-2)
- 2,4-Dichloro-6-isopropoxypyrimidine (CAS 1026787-89-2)
- 4,6-Dichloro-2-isopropoxypyrimidine (CAS 1026787-90-5)
- 1-(4,5-Dichloro-2-methyl-1H-imidazol-1-yl)propan-2-one (CAS 1219563-76-4)
- 3,5-Dichloro-1-isopropylpyrazin-2(1H)-one (CAS 1269534-00-0)
- 2,4-Dichloro-6-(ethoxymethyl)pyrimidine (CAS 1289385-14-3)
Recommended Standards
- 2,2,2-Trifluoro-N-(2,2,2-trifluoro-1-iminoethyl)acetimidamide (CAS 675-05-8)
- 2-(Chlorothio)-benzoyl Chloride (CAS 3950-02-5)
- 2-(Bromomethyl)-6-fluorospiro[3.3]heptane (CAS 2715119-84-7)
- 2-[3-(Benzenesulfonyl)-4-[(4-chlorophenyl)methoxy]phenoxy]-3-chloro-5-(trifluoromethyl)pyridine (CAS 306979-53-3)
- 2-Amino-5-(diethylamino)benzoic acid (CAS 1178154-64-7)
- Diethyl 2-(((3-(7-oxo-4,7-dihydro-1H-[1,2,3]triazolo[4,5-d]pyrimidin-5-yl)-4-propoxyphenyl)amino)methylene)malonate (CAS 66975-54-0)
- Benzyl 2-(bromomethyl)pyrrolidine-1-carboxylate (CAS 86954-06-5)
- 2-(3-Aminoazetidin-1-yl)-N-(p-tolyl)acetamide (CAS 1343374-98-0)
- N-(3-Hydroxyphenyl)propionamide (CAS 21556-86-5)
- Hexapeptide-1 (CAS CATO-CPTD788821)
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 13829788188 / jacky.chen@cato-chem.com