4-chloro-6-methylthieno[3,2-d]pyrimidine CAS 108134-22-1
| CAS No. | 108134-22-1 |
| Molecular Formula | C7H13ClN2S |
| Molecular Weight | 192.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-chloro-6-methylthieno[3,2-d]pyrimidine is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-chloro-6-methylthieno[3,2-d]pyrimidine (CAS 108134-22-1) is a high-purity analytical reference standard with the molecular formula C7H13ClN2S and a molecular weight of 192.71 g/mol.
4-chloro-6-methylthieno[3,2-d]pyrimidine (C7H13ClN2S) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 4-chloro-6-methylthieno[3,2-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 | C7H13ClN2S |
| Molecular Weight | 192.71 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related chloro Standards
- 2-chloro-6-methylthieno[2,3-d]pyrimidine (CAS 1225875-20-6)
- 4-chloro-7-methylthieno[3,2-d]pyrimidine (CAS 175137-21-0)
- 2-chloro-1,3-benzothiazol-7-amine (CAS 1782641-10-4)
- 2-chloro-6-methyl-thieno[3,2-d]pyrimidine (CAS 2033057-21-3)
- 4-chloro-2-methylthieno[2,3-d]pyrimidine (CAS 56843-79-9)
- 4-chloro-5-methylthieno[2,3-d]pyrimidine (CAS 43088-67-1)
- 1-Chloro-6-methyl-1,2-dihydro-thieno[3,2-d]pyrimidine 319442-16-5 4-chloro-2-methylthieno[3,2-d]pyrimidine A5755 (CAS 319442-16-5)
- 1-(3-Chloro-2-methylpropoxy)-3,3-dimethylbutane (CAS 1477830-43-5)
Recommended Standards
- 5-(Methylthio)thiophene-2-carbonyl chloride (CAS 135080-21-6)
- Bempedoic Acid Impurity 44 (CAS 2374157-10-3)
- 6-chlorothieno[3,2-c]pyridin-2-amine (CAS 1638764-29-0)
- Brivaracetam Impurity 83 (CAS CATO-C4X-200783)
- 70693-62-8 Pentapotassium bis(peroxymonosulphate) bis(sulphate) Potassium peroxymonosulfate sulfate (K5(HSO3(O2))(SO3(O2))(HSO4)2) Potassium peroxymonosulfate sulfate (K5H3(SO3(O2))2(SO4)2) EINECS 274-778-7 Potassium hydrogen peroxymonosulfate EC 274-778-7 Potassium peroxymonosulfate sulfate (K5(HSO5)2(HSO4)(SO4)) (CAS 70693-62-8)
- Methyl 3,5-dichloro-2-fluorophenylacetate (CAS 1803777-40-3)
- N-(4-(2-Oxopyrrolidin-1-yl)phenyl)butyramide (CAS 922885-18-5)
- Methyl N-cyanopyrrolidine-1-carbimidothioate (CAS 65159-18-4)
- (S)-2-Amino-1-(4-((benzyl(isopropyl)amino)methyl)piperidin-1-yl)-3-methylbutan-1-one (CAS 1354017-03-0)
- (6-(Ethylthio)pyridin-3-yl)boronic acid (CAS 1217501-38-6)
- [2-(3-Isopropoxyphenyl)ethyl]amine hydrochloride (CAS 1201633-59-1)
- 1-Propyl-3-(3-pyridin-3-yl-benzyl)-piperazin-2-one (CAS 1361111-51-4)
- 4-(4-Carboethoxyphenyl)-1-butene (CAS 591760-20-2)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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