3-(Methylthio)-6-phenyl-[1,2,4]triazolo[3,4-a]phthalazine CAS 87540-84-9
| CAS No. | 87540-84-9 |
| Molecular Formula | C16H12N4S |
| Molecular Weight | 292.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(Methylthio)-6-phenyl-[1,2,4]triazolo[3,4-a]phthalazine.
3-(Methylthio)-6-phenyl-[1,2,4]triazolo[3,4-a]phthalazine (CAS 87540-84-9), molecular formula C16H12N4S and molecular weight 292.36 g/mol, is a CATO reference standard with documented purity and traceability.
3-(Methylthio)-6-phenyl-[1,2,4]triazolo[3,4-a]phthalazine (C16H12N4S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C16H12N4S |
| Molecular Weight | 292.36 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Methylthio Standards
- 2-(Methylthio)-4-oxo-1-phenyl-1,4-dihydroquinoline-3-carbonitrile (CAS 67985-40-4)
- 2-(3-(Methylthio)benzamido)thiophene-3-carboxamide (CAS 896344-04-0)
- 2-(Methylthio)-5-(p-tolylthio)pyrimidine-4-carboxylic acid (CAS 26032-74-6)
- 2-(6-(Methylthio)-4-(piperidin-1-yl)-1h-pyrazolo[3,4-d]pyrimidin-1-yl)ethan-1-amine (CAS 1105197-65-6)
- 3-(Methylthio)-1-phenyl-4,5-dihydro-1H-benzo[g]indazole (CAS 871110-19-9)
- 3-(Methylthio)-2-phenyl-4,5-dihydro-2H-benzo[g]indazole (CAS 871110-05-3)
- 1-(4-(Methylthio)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethan-1-one (CAS 1259443-62-3)
- 2-(Methylthio)-7-oxo-5-(trifluoromethyl)-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1263212-67-4)
Recommended Standards
- 3-(Benzylthio)-5H-[1,2,4]triazino[5,6-b]indole (CAS 73718-26-0)
- 3,6-Diphenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine (CAS 79074-65-0)
- 2-(4-Ethyl-5-mercapto-4H-[1,2,4]triazol-3-yl)-N-(4-methoxy-phenyl)-acetamide (CAS 792944-68-4)
- 4-(Benzylsulfanyl)-[1,2,4]triazolo[4,3-a]quinoxaline (CAS 338420-28-3)
- 3-((1-Hydroxybutan-2-yl)amino)thietane 1,1-dioxide (CAS 1871685-81-2)
- 4-(Aminomethyl)-1,3-thiazol-2-amine dihydrochloride (CAS 89363-94-0)
- Methyl 2-amino-4-(2,6-dichlorophenyl)-5-oxo-4H,5H-thiochromeno[4,3-b]pyran-3-carboxylate (CAS 939889-09-5)
- H-Tyr-Gln-Ser-Leu-Arg-Trp-NH2 (H-6255.0005) (CAS 328074-18-6)
- 2-(o-Tolyloxy)-4H-benzo[d][1,3,2]dioxaphosphinine 2-oxide (CAS 1222-87-3)
- Methyl 2-ethylbutanoate (CAS 816-11-5)
- 1-(2-Fluorophenyl)-N-(2,2,4-trimethyl-2,3-dihydrobenzofuran-7-yl)methanimine (CAS 866150-42-7)
- 4-(tert-Butyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2095797-21-8)
- 2-Amino-5-(2,3-dichlorophenyl)isonicotinic acid (CAS 1261995-94-1)
- Neuropeptide S (rat) (CAS 412938-75-1)
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