2-amino-5-methanesulfonyl-4-methoxybenzoic acid CAS 1258639-90-5
| CAS No. | 1258639-90-5 |
| Molecular Formula | C9H11NO5S |
| Molecular Weight | 245.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-amino-5-methanesulfonyl-4-methoxybenzoic acid (C9H11NO5S) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 245.25 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-amino-5-methanesulfonyl-4-methoxybenzoic acid (CAS 1258639-90-5), molecular formula C9H11NO5S and molecular weight 245.25 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-amino-5-methanesulfonyl-4-methoxybenzoic acid 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.
Physical & Chemical Properties
| Molecular Formula | C9H11NO5S |
| Molecular Weight | 245.25 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related amino Standards
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- 5-Amino-3'-fluoro-4'-methyl-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261926-00-4)
- 5-Amino-2'-fluoro-5'-methyl-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261948-61-1)
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Recommended Standards
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- trans-1-Benzyl-5-(ethoxycarbonyl)pyrrolidine-2-carboxylic acid (CAS 95186-12-2)
- 5-Ethyl-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 10606-53-8)
- (1R-cis)-2-Aminocyclobutanol Hydrochloride (CAS 206751-78-2)
- 1-Chloro-3-[chloro(difluoro)methoxy]-2,4-difluoro-benzene (CAS 1417567-05-5)
- 2-Bromo-5-phenylpyrimidine (CAS 155079-14-4)
- 5-Chloro-N,N-dimethylpentan-1-amine hydrochloride (CAS 56824-25-0)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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