4-chloro-6-(methylsulfanyl)quinazoline CAS 155960-93-3
| CAS No. | 155960-93-3 |
| Molecular Formula | C9H7ClN2S |
| Molecular Weight | 210.68 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.
4-chloro-6-(methylsulfanyl)quinazoline (CAS 155960-93-3), molecular formula C9H7ClN2S and molecular weight 210.68 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H7ClN2S, 4-chloro-6-(methylsulfanyl)quinazoline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H7ClN2S |
| Molecular Weight | 210.68 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related chloro Standards
- 3-Chloro-6-(5-methylthiophen-2-yl)pyridazine (CAS 1105194-98-6)
- 4-Chloro-6-methyl-2-(thiophen-3-yl)pyrimidine (CAS 1153298-12-4)
- 4-Chloro-2-(5-methylthiophen-2-yl)pyrimidine (CAS 1155598-46-1)
- 4-Chloro-2-(3-methylthiophen-2-yl)pyrimidine (CAS 1155599-88-4)
- 5-chloro-3-(2-methylphenyl)-1,2,4-thiadiazole (CAS 1221341-18-9)
- 5-Chloro-3-(3-methylphenyl)-1,2,4-thiadiazole (CAS 1221342-38-6)
- 2-Chloro-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 1225635-21-1)
- 4-Chloro-2-cyclopropylthieno[2,3-d]pyrimidine (CAS 1247422-94-1)
Recommended Standards
- 2-(5-chlorothiophen-2-yl)pyridin-3-amine (CAS 1552764-70-1)
- 1-(5-Chlorobenzothiophen-3-yl)ethanone, 97% (CAS 16296-90-5)
- 3-(2-Chlorophenyl)isothiazol-4-amine (CAS 1466272-33-2)
- 1-(4-Chlorophenyl)-1h-imidazole-2-thiol (CAS 17452-12-9)
- tert-Butyl 2-cyanoacrylate (CAS 37891-36-4)
- 3-Bromo-2-oxo-3-phenylpropanoic acid (CAS 79173-88-9)
- 1-(2-chlorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1046784-68-2)
- 11-(3-Methoxy-4-propoxyphenyl)-3,3-dimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one (CAS 337503-12-5)
- Ethyl 4-((5-methyl-1,3,4-thiadiazol-2-yl)thio)-3-oxobutanoate (CAS 877052-29-4)
- 2-(2-Bromophenyl)-5-cyclopropyl-1,3,4-oxadiazole (CAS 675830-41-8)
- N-(4-Chlorophenyl)imidazo[1,2-a]pyridin-3-amine (CAS 823806-66-2)
- 1-[(6-Chloro-3-pyridinyl)methyl]-4-phenylpiperazine (CAS 860787-10-6)
- 4-[(4-Methoxyphenyl)methyl]thiomorpholine-3,5-dione (CAS 338953-64-3)
- Myosin Kinase Inhibiting Peptide (CAS 119386-39-9)
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