6-(Methylthio)pyrimidine-4,5-diamine CAS 6965-92-0
| CAS No. | 6965-92-0 |
| Molecular Formula | C5H8N4S |
| Molecular Weight | 156.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 156.21 g/mol gives 6-(Methylthio)pyrimidine-4,5-diamine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
6-(Methylthio)pyrimidine-4,5-diamine (CAS 6965-92-0), molecular formula C5H8N4S and molecular weight 156.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-(Methylthio)pyrimidine-4,5-diamine (C5H8N4S) contains a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 156.21 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C5H8N4S |
| Molecular Weight | 156.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 2-(Methylthio)pyrimidine-4,6-diamine (CAS 1005-39-6)
- 1-Methyl-2-(methylthio)-1H-imidazole-5-carbaldehyde (CAS 105956-24-9)
- 1-Methyl-2-(methylthio)-1H-imidazole-4-carbaldehyde (CAS 149806-15-5)
- 4-Methyl-6-(methylthio)pyrimidin-2-ol (CAS 16710-11-5)
- 1-(2-(Methylthio)-1H-imidazol-5-yl)ethan-1-one (CAS 944898-42-4)
- 2-Methyl-5-(methylthio)pyrimidin-4-ol (CAS 66699-20-5)
- 3-(Methylthio)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole (CAS 603067-11-4)
- 3-Methyl-2-(methylthio)pyrimidin-4(3H)-one (CAS 6327-98-6)
Recommended Standards
- 5-Methylthiophene-3-carbohydrazide (CAS 524731-02-0)
- 6,7-Dihydro-4H-pyrano[4,3-d]thiazol-2-ylamine (CAS 259810-12-3)
- 5-Methyl-4-(methylthio)pyrimidin-2-ol (CAS 55040-79-4)
- 6,7-Dihydro-5H-[1,2,4]triazolo[3,4-b][1,3]thiazin-3-ylamine (CAS 639782-44-8)
- 5-methyl-4-(phenoxymethyl)isoxazole-3-carboxylic acid (CAS 905809-10-1)
- N-(2-methylbenzo[d]oxazol-6-yl)hexanamide (CAS 861210-64-2)
- 2-(Cyclopropylamino)-4-(1h-imidazol-1-yl)butanamide (CAS 1339819-68-9)
- 3-(4-(Methylthio)phenoxy)azetidine (CAS 1341801-42-0)
- 4-Vinylbenzamide (CAS 3661-73-2)
- 3-(3-Formylindol-1-yl)propanenitrile (CAS 18109-11-0)
- 5-Amino-4'-fluoro-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one (CAS 604000-06-8)
- 2-(2,2-Difluoroethyl)-5-fluoropyridin-4-amine (CAS 2757678-74-1)
- Lactoferrin (322-329) (human) (CAS 496808-32-3)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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