Methyl 2-mercaptobenzo[d]oxazole-6-carboxylate CAS 72752-81-9
| CAS No. | 72752-81-9 |
| Molecular Formula | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 2-mercaptobenzo[d]oxazole-6-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Methyl 2-mercaptobenzo[d]oxazole-6-carboxylate (CAS 72752-81-9) is a high-purity analytical reference standard with the molecular formula C9H7NO3S and a molecular weight of 209.22 g/mol.
Structurally, Methyl 2-mercaptobenzo[d]oxazole-6-carboxylate (C9H7NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 209.22 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.
Physical & Chemical Properties
| Molecular Formula | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 2-mercaptobenzo[d]oxazole-5-carboxylate (CAS 72730-39-3)
- Methyl 2-mercaptobenzo[d]oxazole-7-carboxylate (CAS 213685-64-4)
- N-(7-mercaptobenzo[c][1,2,5]oxadiazol-4-yl)acetamide (CAS 254973-02-9)
- 4-Mercaptobenzo[d]oxazole-2-carboxylic acid (CAS 1803833-07-9)
- 1-(4-Mercaptobenzo[d]oxazol-2-yl)ethanone (CAS 1803742-13-3)
- 1-(5-Mercaptobenzo[d]oxazol-2-yl)ethanone (CAS 1803815-27-1)
- 1-(2-Mercaptobenzo[d]oxazol-4-yl)ethanone (CAS 1804215-22-2)
- 1-(6-Mercaptobenzo[d]oxazol-2-yl)ethanone (CAS 1806588-03-3)
Recommended Standards
- Methyl 2-formyl-6H-thieno[2,3-b]pyrrole-5-carboxylate (CAS 2137782-15-9)
- Methyl 2-thioxo-2,3-dihydrobenzo[d]oxazole-4-carboxylate (CAS 213685-54-2)
- Fasudil Impurity N2 (CAS 23261-58-7)
- Methyl 3-(4-fluorophenyl)azetidine-3-carboxylate (CAS 2306274-72-4)
- Tetradecanoic acid-1-13C (CAS 57677-52-8)
- 4'-Methoxy-[1,1'-biphenyl]-4-carboxylic acid (CAS 725-14-4)
- (2-(9H-Carbazol-9-yl)ethyl)phosphonic acid (CAS 20999-38-6)
- Imidodicarbonic acid, 2-(4-bromo-2,6-dichlorophenyl)-, 1,3-bis(1,1-dimethylethyl) ester (CAS 915145-00-5)
- 4-(4-Chlorophenoxy)-2-(trifluoromethyl)aniline (CAS 74159-77-6)
- 2,5-Difluoro-4-morpholinoaniline (CAS 1238704-91-0)
- 2,4-Diphenyl-(1,3,2,4)dioxadiphosphetane 2,4-dioxide (CAS 10291-80-2)
- 4-ethoxy-1-nitro-2-(trifluoromethyl)benzene (CAS 363-96-2)
- 5-Amino-2-chloro-N-ethyl-N-phenylbenzene-1-sulfonamide (CAS 406927-70-6)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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