7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid CAS 132-87-6
| CAS No. | 132-87-6 |
| Molecular Formula | C17H13NO5S |
| Molecular Weight | 343.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Benzamido-4-hydroxynaphthalene-2-sulfonic 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.
CATO supplies 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid (CAS 132-87-6), a certified reference material (molecular formula C17H13NO5S, MW 343.35 g/mol) for analytical method development and quality control.
Structurally, 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid (C17H13NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 343.35 g/mol, it falls into the moderately-high-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 | C17H13NO5S |
| Molecular Weight | 343.35 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- (S,E)-2-(3-(2-fluorophenyl)acrylamido)-3-(4-methoxyphenyl)propanoic acid (CAS 1219039-66-3)
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- 2-(4-Fluorophenoxy)-N-(1-(furan-2-ylmethyl)-1H-pyrazol-5-yl)butanamide (CAS 1179428-67-1)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-fluorobutanoic acid (CAS 2243127-33-3)
- n-(2-Aminoethyl)-5-(trifluoromethyl)pyridin-2-amine dihydrochloride (CAS 1170432-85-5)
- cis-Methyl 3-hydroxycyclobutanecarboxylate (CAS 63485-50-7)
- 1-(5-Chloro-6-(trifluoromethyl)pyridin-3-yl)ethan-1-one (CAS 1256820-86-6)
- 1-(4-(Trifluoromethyl)phenyl)azetidin-3-amine (CAS 1342753-23-4)
- (2-(Trifluoromethyl)thiazol-4-yl)methanamine (CAS 852854-39-8)
- Baclofen Impurity 57 (CAS CATO-C4X-101257)
- 1-(2,2-Diethoxyethyl)-4-methylpiperazine (CAS 1343344-74-0)
- 4-(Chloro(dimethylamino)methylene)-2-phenyloxazol-5(4H)-one (CAS 61767-44-0)
- Glutathione Impurity 29 (CAS CATO-C4X-118529)
- Gastric Inhibitory Polypeptide (3-42) (human) trifluoroacetate salt (CAS 1802086-25-4)
Why CATO?
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