7-Mercapto-2-methyl-5H-pyrazolo[1,5-d][1,2,4]-triazin-4-one CAS 40535-03-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40535-03-3 |
| Molecular Formula | C6H6N4OS |
| Molecular Weight | 182.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Mercapto-2-methyl-5H-pyrazolo[1,5-d][1,2,4]-triazin-4-one (CAS 40535-03-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H6N4OS. Molecular weight: 182.20 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H6N4OS |
| Molecular Weight | 182.20 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Mercapto Standards
- 2-Mercapto-3-methyl-3H-purin-6(9H)-one (CAS 28139-02-8)
- 3-Mercapto-5-methyl-[1,2,4]triazolo[4,3-a]pyrimidin-7-ol (CAS 91184-07-5)
- 3-Mercapto-7-methyl-[1,2,4]triazolo[4,3-a]pyrimidin-5(8H)-one (CAS 92086-68-5)
- Methyl 2-mercapto-5-methylbenzoate (CAS 104795-79-1)
- 1-(4-mercapto-2,6-dimethylpyrimidin-5-yl)ethanone (CAS 13995-17-0)
- 2-Mercapto-5,6,7,8-tetrahydroquinazolin-4-ol (CAS 16064-21-4)
- 4-Mercapto-5,6,7,8-tetrahydroquinazolin-2-ol (CAS 21582-66-1)
- Methyl 2-mercapto-4-methylbenzoate (CAS 345910-55-6)
Recommended Standards
- 7-(Methylthio)-5,6-dihydro-4H-imidazo[4,5-d]pyridazin-4-one (CAS 3438-77-5)
- 7-Methylthieno[3,2-d]pyrimidine-2,4(3H,4aH)-dione (CAS 464216-52-2)
- 7-(hydroxymethyl)-5H-pyrimido[2,1-b][1,3]thiazol-5-one (CAS 85811-77-4)
- 5,5-Difluoro-1-methyl-4,5,6,7-tetrahydro-1H-indazole-3-carboxylic acid (CAS 1784893-60-2)
- 1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl 4-(1,1-dimethylethyl)benzoate (CAS 713491-05-5)
- (2R,3R,4R,5S,6R)-6-(acetoxymethyl)-3-(1,3-dioxoisoindolin-2-yl)tetrahydro-2H-pyran-2,4,5-triyl triacetate (CAS 31505-44-9)
- 2-(5-Amino-3-methyl-1H-pyrazol-1-yl)-5-ethyl-6-methylpyrimidin-4(3H)-one (CAS 79871-77-5)
- N-Nitroso Dabigatran Etexilate (CAS 2892260-29-4)
- 4-Isothiocyanatophenyl α-D-Mannopyranoside (CAS 96345-79-8)
- DAPK Substrate Peptide (CAS 386769-53-5)
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 13829788188 / jacky.chen@cato-chem.com