Sodium 2-(5-mercapto-1H-tetrazol-1-yl)acetate CAS 113221-74-2
| CAS No. | 113221-74-2 |
| Molecular Formula | C3H3N4O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 2-(5-mercapto-1H-tetrazol-1-yl)acetate (CAS 113221-74-2), molecular formula C3H3N4O2SNa and molecular weight 182.13 g/mol, is a CATO reference standard with documented purity and traceability.
Sodium 2-(5-mercapto-1H-tetrazol-1-yl)acetate (C3H3N4O2SNa) contains an amide group, a sulfone group, a carboxylic acid 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.
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 | C3H3N4O2S Na |
| Molecular Weight | 182.13 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) | 4.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Sodium Standards
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- 4-Mercapto-N-methyl-1H-1,2,3-triazole-5-carboxamide (CAS 100097-71-0)
- 2-Mercapto-3-(3-(5-methyl-1H-pyrazol-1-yl)propyl)quinazolin-4(3H)-one (CAS 1003993-45-0)
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Recommended Standards
- 3-ethylpentan-2-ol (CAS 609-27-8)
- 1-(4-Aminopiperidin-1-yl)-3-(3,5-dimethyl-1H-pyrazol-4-yl)propan-1-one (CAS 1706812-88-5)
- 3-Bromoquinoline-6-carbaldehyde (CAS 860757-84-2)
- Fmoc-2-amino-3-methoxybutanoic acid (CAS 1396995-62-2)
- tert-Butyl 9H-fluoren-2-ylcarbamate (CAS 141340-61-6)
- methyl 5-(aminomethyl)-3-methylfuran-2-carboxylate hydrochloride (CAS 2044837-22-9)
- tert-Butyl 3-((5-chloropyrimidin-2-yl)amino)pyrrolidine-1-carboxylate (CAS 1261229-97-3)
- 1-[(1-ethyl-3,5-dimethyl-1h-pyrazol-4-yl)sulfonyl]piperidine-4-carboxylic acid (CAS 925200-03-9)
- 3-{2,3,5-trimethyl-7-oxo-7h-furo[3,2-g]chromen-6-yl}propanoic acid (CAS 663910-76-7)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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