N-1,2-Oxazol-3-ylsulfuric diamide CAS 71565-64-5
| CAS No. | 71565-64-5 |
| Molecular Formula | C3H5N3O3S |
| Molecular Weight | 163.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-1,2-Oxazol-3-ylsulfuric diamide (CAS 71565-64-5) is a high-purity analytical reference standard with the molecular formula C3H5N3O3S and a molecular weight of 163.16 g/mol.
Structurally, N-1,2-Oxazol-3-ylsulfuric diamide (C3H5N3O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 163.16 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C3H5N3O3S |
| Molecular Weight | 163.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related N Standards
- 1,2-oxazol-3-ylmethanesulfonamide (CAS 1375473-84-9)
- 2-(Oxazol-4-yl)phenol (CAS 391927-10-9)
- 2-(Oxazol-5-yl)phenol (CAS 391927-03-0)
- 3-(Oxazol-5-yl)phenol (CAS 940303-49-1)
- 4-(Oxazol-2-yl)phenol (CAS 68535-56-8)
- 4-(Oxazol-4-yl)phenol (CAS 57801-65-7)
- 4-Phenyl-oxazol-2-ol (CAS 34375-80-9)
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Recommended Standards
- 5-Methyl-1,3,4-oxadiazole-2-sulfonamide (CAS 98022-45-8)
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- 3-Methyl-3,4-dihydro-benzo[e][1,3]oxazin-2-one (CAS 1008-83-9)
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- 5-Bromo-4-methylpyridine-2-thiol (CAS 1403579-62-3)
- 5-(3-Methoxyphenyl)-2-methylpyrazol-3-amine (CAS 1152708-61-6)
- 2-(8-(Tert-butyl)-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)-N-(2-methoxyethyl)acetamide (CAS 1180601-68-6)
- 3-Hydroxy-2-(4-methyl-2-oxazol-2-yl-benzoyl)-cyclohex-2-enone (CAS 1231580-55-4)
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