2-chloro-6-methyl-thieno[3,2-d]pyrimidine CAS 2033057-21-3
| CAS No. | 2033057-21-3 |
| Molecular Formula | C7H13ClN2S |
| Molecular Weight | 192.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-chloro-6-methyl-thieno[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.
2-chloro-6-methyl-thieno[3,2-d]pyrimidine (CAS 2033057-21-3) is a high-purity analytical reference standard with the molecular formula C7H13ClN2S and a molecular weight of 192.71 g/mol.
The molecular framework of 2-chloro-6-methyl-thieno[3,2-d]pyrimidine (C7H13ClN2S) is characterized by a nitrile group, sulfur-containing functionality, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-chloro-6-methyl-thieno[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.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related chloro Standards
- 4-chloro-6-methylthieno[3,2-d]pyrimidine (CAS 108134-22-1)
- 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)
- 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
- 6-chlorothieno[2,3-b]pyridin-2-amine (CAS 1638771-87-5)
- 19952-47-7 2-Benzothiazolamine, 4-chloro- Benzothiazole, 2-amino-4-chloro- 4-Chlorobenzothiazol-2-ylamine 4-27-00-04859 (Beilstein Handbook Reference) 2-Amino-4-chlorobenzothiazole BRN 0136784 EINECS 243-439-5 (CAS 19952-47-7)
- 6-chlorothieno[3,2-c]pyridin-2-amine (CAS 1638764-29-0)
- 2U337T5UFG 95-24-9 6-Chloro-2-benzothiazolamine 2-Benzothiazolamine, 6-chloro- Benzothiazole, 2-amino-6-chloro- 6-Chlorobenzothiazol-2-ylamine 4-27-00-04862 (Beilstein Handbook Reference) 2-Amino-6-chlorobenzothiazole BRN 0127752 EINECS 202-402-3 UNII-2U337T5UFG (CAS 95-24-9)
- 3-Bromo-6,7,8,9-tetrahydro-5H-cyclohepta[b]isothiazolo[4,5-e]pyridine (CAS 728025-88-5)
- 2-(2-Chloro-6-(difluoromethyl)-3-methoxypyridin-4-yl)acetic acid (CAS 1806936-42-4)
- 3-Cyclopropoxy-6-iodo-2-nitropyridine (CAS 1243352-31-9)
- 4-Bromo-2-(2-(4-chlorophenyl)-2-oxoethyl)-5-morpholinopyridazin-3(2H)-one (CAS 303987-72-6)
- (7Z,11Z,13E)-Hexadeca-7,11,13-trienal (CAS 888042-38-4)
- Benzyl 3-(((S)-2-amino-N-cyclopropylpropanamido)methyl)pyrrolidine-1-carboxylate (CAS 1354025-72-1)
- 1-Bromo-3-(2-nitro-1-propen-1-yl)benzene (CAS 15804-72-5)
- (5-(Aminomethyl)thiophen-2-yl)(thiophen-2-yl)methanone hydrobromide (CAS 1448046-01-2)
- N-(2-Methoxyphenyl)-2,5-dimethylaniline (CAS 211292-60-3)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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