2,4-Dichloro-6-methylthieno[3,2-d]pyrimidine CAS 35265-82-8
| CAS No. | 35265-82-8 |
| Molecular Formula | C7H4Cl2N2S |
| Molecular Weight | 219.09 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.
CATO supplies 2,4-Dichloro-6-methylthieno[3,2-d]pyrimidine (CAS 35265-82-8), a certified reference material (molecular formula C7H4Cl2N2S, MW 219.09 g/mol) for analytical method development and quality control.
Owing to a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system, 2,4-Dichloro-6-methylthieno[3,2-d]pyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.09 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.
CATO manufactures 2,4-Dichloro-6-methylthieno[3,2-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 | C7H4Cl2N2S |
| Molecular Weight | 219.09 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.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 4,5-Dichloro-2-methylthieno[2,3-d]pyrimidine (CAS 137287-40-2)
- 2,6-Dichloro-4-thiocyanatoaniline (CAS 14030-85-4)
- 4,7-Dichloro-2-methylthieno[3,2-d]pyrimidine (CAS 1823921-18-1)
- 4,7-Dichloro-1,3-benzothiazol-2-amine (CAS 1849-70-3)
- 4,5-Dichloro-benzothiazol-2-ylamine (CAS 1849-71-4)
- 5,6-dichloro-1,3-dihydrobenzimidazole-2-thione (CAS 19462-98-7)
- 2,3-Dichloro-4-thiocyanatoaniline (CAS 7494-03-3)
- 2,4-Dichloro-5-methylthieno[2,3-d]pyrimidine (CAS 56844-38-3)
Recommended Standards
- 2,5-Dichloro-4-thiocyanatoaniline (CAS 772-12-3)
- 2,7-Dichlorobenzo[d]thiazol-4-amine (CAS 70200-93-0)
- 2-((4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)methyl)pyridine (CAS 2098263-70-6)
- 2,7-Dichlorobenzo[d]thiazol-6-amine (CAS 70200-94-1)
- cis-Piceatannol (CAS 106325-86-4)
- (2-(2-Fluorophenoxy)acetyl)-L-alanine (CAS 1308918-55-9)
- 2-[(4S)-4,5-Dihydro-4-(1-methylethyl)-2-oxazolyl]pyrimidine (CAS 2634687-59-3)
- 2-Bromo-5-chloro-3-(difluoromethyl)-6-methoxypyridine (CAS 1806030-11-4)
- Benzyl (3-chloropropyl)carbamate (CAS 53602-19-0)
- 2-(((7-Hydroxy-4-methyl-2-oxo-2H-chromen-8-yl)methyl)(methyl)amino)acetic acid (CAS 54696-41-2)
- 3-Bromo-5-(2-fluoroethoxy)pyridine (CAS 1241752-26-0)
- Ternatin DISCONTINUED (CAS 148619-41-4)
- (cyclopropyl-ethoxy-methyl-silyl)oxy-dimethyl-silicon (cyclopropyl-ethoxy-methylsilyl)oxy-dimethylsilicon 27374-25-0 A819037 (CAS 27374-25-0)
- [Tyr15] Fibrinopeptide B, human (CAS 125455-56-3)
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