4,6-Dichloro-N-methyl-5-(methylthio)pyrimidin-2-amine CAS 40765-72-8
| CAS No. | 40765-72-8 |
| Molecular Formula | C6H7Cl2N3S |
| Molecular Weight | 224.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,6-Dichloro-N-methyl-5-(methylthio)pyrimidin-2-amine 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.
4,6-Dichloro-N-methyl-5-(methylthio)pyrimidin-2-amine (CAS 40765-72-8), molecular formula C6H7Cl2N3S and molecular weight 224.11 g/mol, is a CATO reference standard with documented purity and traceability.
4,6-Dichloro-N-methyl-5-(methylthio)pyrimidin-2-amine (C6H7Cl2N3S) contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C6H7Cl2N3S |
| Molecular Weight | 224.11 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,4-Dichloro-6-(isopropylthio)-1,3,5-triazine (CAS 30894-60-1)
- 2,4-dichloro-6,7-dimethyl-5H-pyrrolo[3,2-d]pyrimidine (CAS 1062517-28-5)
- 2,4-dichloro-6-ethyl-7h-pyrrolo[2,3-d]pyrimidine (CAS 1275608-17-7)
- 2,4-dichloro-7-methyl-pyrido[3,2-d]pyrimidine (CAS 1567624-24-1)
- 2,4-dichloro-5,7-dimethyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1638764-36-9)
- 2,4-dichloro-5,6-dimethylpyrrolo[2,1-f][1,2,4]triazine (CAS 2306273-15-2)
- 2,4-dichloro-6-methyl-pyrido[3,2-d]pyrimidine (CAS 30212-52-3)
- 2,4-dichloro-7-methyl-pyrido[2,3-d]pyrimidine (CAS 92350-63-5)
Recommended Standards
- 3-Fluoro-4-(trifluoromethoxy)benzoic Acid (CAS 886498-89-1)
- 4-Fluoro-2-nitro-6-(trifluoromethyl)aniline (CAS 344-29-6)
- 2-Hydroxy-2-(2,3,5,6-tetrafluorophenyl)acetic acid (CAS 685892-11-9)
- 4-Fluoro-3-(trifluoromethoxy)benzoic acid (CAS 886496-49-7)
- (4-Bromo-2-methyl-6-nitrophenyl)methanol (CAS 1805141-83-6)
- 4-methyl-3-phenylpiperazin-2-one (CAS 5368-20-7)
- 1,4-Cyclohexadiene-1-carboxylicacid, ethyl ester 72431-21-1 CTK5D6094 (CAS 72431-21-1)
- Oxadixyl (CAS 77732-09-3)
- N-(3-Chloro-4-fluorophenyl)-3-ethyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-amine (CAS 899978-91-7)
- 4-methyl-5-(4-methyloxazol-5-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 170959-40-7)
- 4,4'-Bis[N-(1-naphthyl)-N-phenylamino]-4''-phenyltriphenylamine (CAS 1073183-32-0)
- (E)-N'-Methoxy-N-[7-(pyridin-3-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]methanimidamide (CAS 303145-98-4)
- tert-Butyl ((1S,2S,4R)-7-azabicyclo[2.2.1]heptan-2-yl)carbamate (CAS 1932031-07-6)
- Semaglutide impound 212 (CAS CATO-C4X-2226212)
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