5-Amino-6-(phenylthio)-1,2,4-triazin-3(2H)-one CAS 32331-19-4
| CAS No. | 32331-19-4 |
| Molecular Formula | C10H7Cl7 |
| Molecular Weight | 375.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Amino-6-(phenylthio)-1,2,4-triazin-3(2H)-one (C10H7Cl7) contains chlorine substitution, an aromatic ring system. 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 375.33 g/mol, it falls into the moderately-high-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).
5-Amino-6-(phenylthio)-1,2,4-triazin-3(2H)-one (CAS 32331-19-4), molecular formula C10H7Cl7 and molecular weight 375.33 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C10H7Cl7 |
| Molecular Weight | 375.33 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 5,6-Bis(benzo[d][1,3]dioxol-5-yl)furo[2,3-d]pyrimidin-4-amine (CAS 87499-62-5)
- H-Asp-Asn-Gln-OH (CAS 286465-87-0)
- 4,5-Diaminofluorescein triazole (CAS 208850-35-5)
- Resorufin β-D-Galactopyranoside (CAS 95079-19-9)
- 2-([1,1-Biphenyl]-2-yloxy)-3-chloroaniline (CAS 946772-53-8)
- (4-Amino-2-methoxyphenyl)urea (CAS 926202-00-8)
- (2,5-Dimethylphenyl)(phenyl)methanone (CAS 4044-60-4)
- 3-(2,4,5-Trifluorophenyl)propan-1-ol (CAS 130887-16-0)
- 3-(3-Phenylpropoxy)pyrrolidine (CAS 946759-98-4)
- 6-Oxo-1-phenyl-1,6-dihydropyridazin-3-yl 4-fluorobenzoate (CAS 478029-18-4)
- 5-Bromo-3-ethyl-2-iodotoluene (CAS 1208075-21-1)
- 2-(4-(Dimethylamino)phenyl)-2-methylpropanoic acid (CAS 228411-16-3)
- tert-Butyl ((2R,4S)-4-fluoropyrrolidin-2-yl)carbamate hydrochloride (CAS 1946010-87-2)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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