4-(Benzylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid CAS 1858249-67-8
| CAS No. | 1858249-67-8 |
| Molecular Formula | C16H15NO5S |
| Molecular Weight | 333.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(Benzylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid.
4-(Benzylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 1858249-67-8), molecular formula C16H15NO5S and molecular weight 333.36 g/mol, is a CATO reference standard with documented purity and traceability.
4-(Benzylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (C16H15NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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.
As a certified reference material (CRM), 4-(Benzylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic 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 | C16H15NO5S |
| Molecular Weight | 333.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Benzylsulfonyl Standards
- 2-(Benzylsulfonyl)-5,7-dimethoxy-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 400074-81-9)
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- 5-(Benzylsulfonyl)-4-bromo-2-methylpyridazin-3(2H)-one (CAS 97120-13-3)
- 1-(Benzylsulfonyl)-4-(thiophen-3-yl)piperidine (CAS 1396887-11-8)
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Recommended Standards
- 2-(4-(Phenylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-2-yl)acetic acid (CAS 1713476-47-1)
- (5-(2-Hydroxyethyl)-2-((4-methoxybenzyl)amino)phenyl)dimethylphosphine oxide (CAS 1887181-14-7)
- Ethyl 3-((3-(2-fluorophenyl)-1,2,4-oxadiazol-5-yl)methyl)piperidine-1-carboxylate (CAS 1705102-68-6)
- (Z)-4-(4-Fluorobenzylidene)-1,2,3,4-tetrahydroacridine-9-carboxylic acid (CAS 380437-34-3)
- 3-Amino-4-(4-(benzyloxy)phenyl)butanoic acid (CAS 1391275-16-3)
- 2-((4-Chloro-N-(2,4-dichloro-5-methoxyphenyl)phenyl)sulfonamido)-N,N-dimethylacetamide (CAS 338961-60-7)
- (E)-N-Hydroxy-N-methyl-N'-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)methanimidamide (CAS 338400-04-7)
- 2-Amino-N-butylbenzo[d]thiazole-6-carboxamide (CAS 1071393-76-4)
- o-Xylene-α,α,α,α′,α′,α′-d6 (CAS 25319-54-4)
- 2-Iodo-N-(pyridin-3-ylmethyl)aniline (CAS 1152561-11-9)
- 1,4-Bis[(R)-[(1S,2S,4S,5R)-5-ethyl-2-quinuclidinyl](6-methoxy-4-quinolyl)methoxy]anthracene-9,10-dione (CAS 176097-24-8)
- 1-(1-(3-Fluorophenyl)-5-oxopyrrolidin-3-yl)-3-(thiophen-2-ylmethyl)urea (CAS 891104-90-8)
- 3-(Dimethylamino)-1-[3-(trifluoromethyl)phenyl]but-2-en-1-one (CAS 96604-34-1)
- Neuropeptide Y (3-36) (porcine) trifluoroacetate salt (CAS 143863-88-1)
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