4-Methyl-1-(3-oxo-3H-benzo[f]chromen-2-yl)-4H-1,2,4-triazol-1-ium methyl sulfate CAS 67883-54-9
| CAS No. | 67883-54-9 |
| Molecular Formula | C16H12N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-Methyl-1-(3-oxo-3H-benzo[f]chromen-2-yl)-4H-1,2,4-triazol-1-ium methyl sulfate (CAS 67883-54-9), a certified reference material (molecular formula C16H12N3O2CH3O4S, MW 389.38 g/mol) for analytical method development and quality control.
4-Methyl-1-(3-oxo-3H-benzo[f]chromen-2-yl)-4H-1,2,4-triazol-1-ium methyl sulfate (C16H12N3O2CH3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H12N3O2 CH3O4S |
| Molecular Weight | 389.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- Alverine-D5 Citrate (CAS 1215327-00-6)
- N-(Pyrimidin-5-yl)acetimidamide (CAS 55383-63-6)
- Haloxyfop-Methyl (CAS 69806-40-2)
- 2-(2-Amino-5-iodophenyl)acetic acid (CAS 1261810-98-3)
- 5-Bromothiazol-2(3H)-iminehydrochloride (CAS 133692-18-9)
- 4-[(Cyclopropylmethoxy)methyl]phenylboronic acid (CAS 1256358-62-9)
- 5-Chloro-2-ethyl-4-(ethylthio)pyridazin-3(2H)-one (CAS 105651-67-0)
- CH5132799 (CAS 1007207-67-1)
- Posaconazole Impurity 116 (CAS 151670-13-2)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
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