2-(Methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine Hydrochloride CAS 1226776-81-3
| CAS No. | 1226776-81-3 |
| Molecular Formula | C8H11N3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(Methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine Hydrochloride is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(Methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine Hydrochloride (CAS 1226776-81-3), molecular formula C8H11N3SHCl and molecular weight 217.72 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H11N3SHCl, 2-(Methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine Hydrochloride 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 217.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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), 2-(Methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine Hydrochloride 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 | C8H11N3S HCl |
| Molecular Weight | 217.72 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 4-(Methylthio)-1H-pyrazolo[3,4-d]pyrimidin-6-ol (CAS 100047-41-4)
- 2-(Methylthio)-N-(2-(4-nitrophenoxy)ethyl)thiazolo[4,5-d]pyrimidin-7-amine (CAS 1000574-56-0)
- 4-Methyl-3-(methylthio)-7-nitro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1000575-87-0)
- 3-(Methylthio)-4-phenyl-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 1000577-38-7)
- 5-Methyl-2-(methylthio)pyrimidine (CAS 100114-24-7)
- 6-benzyl-2-(methylthio)pyrimidin-4(3H)-one (CAS 100142-46-9)
- 2-(Methylthio)-5,6-dihydropyrimidin-4(1H)-one (CAS 100185-53-3)
- 4-(methylthio)-6-(tributylstannyl)pyrimidine (CAS 1002719-56-3)
Recommended Standards
- Spiro[isochroman-1,4’-piperidine] (CAS 180160-97-8)
- 5-Chloro-4'-(hydroxymethyl)-[1,1'-biphenyl]-3-carboxylic acid (CAS 1262005-64-0)
- 3-(3-Hydroxypyrrolidin-1-yl)tetrahydrothiophene 1,1-dioxide (CAS 1340295-61-5)
- tert-butyl 6-bromo-1,2,3,4-tetrahydroquinoline-4-carboxylate (CAS 2059938-18-8)
- 6-Bromo-1-(tert-butyl)-2-ethoxy-2-methyl-2,3-dihydro-1H-benzo[d]imidazole (CAS 1217486-79-7)
- Lupinol C (CAS 135905-53-2)
- Isomitraphylline (CAS 4963-01-3)
- 9A-phenylhexahydro-1H-pyrido[1,2-a]pyrimidin-6(2H)-one (CAS 6029-43-2)
- 1-({1,3-dimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidin-6-yl}sulfanyl)-n,n-dimethylformamide (CAS 1235441-05-0)
- Peptide Impurity 40 (CAS CATO-CPTD788840)
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