naphthalene-1,4,5,8-tetracarboxylic acid CAS 128-97-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 128-97-2 |
| Molecular Formula | C14H18O8 |
| Molecular Weight | 314.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
naphthalene-1,4,5,8-tetracarboxylic acid (CAS 128-97-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H18O8. Molecular weight: 314.29 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H18O8 |
| Molecular Weight | 314.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related naphthalene Standards
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- 4,4'-(Naphthalene-2,7-diyl)dianiline (CAS 1801204-93-2)
- 4,4'-(Naphthalene-1,4-diyl)dianiline (CAS 956980-39-5)
- 4,4'-(Naphthalene-2,6-diyl)dianiline (CAS 2102499-82-9)
- (S)-1-(Naphthalene-2-sulfonyl)-piperidine-3-carboxylic acid (CAS 1187928-71-7)
- (R)-1-(Naphthalene-2-sulfonyl)-piperidine-3-carboxylic acid (CAS 1187928-75-1)
- 1-(Naphthalene-2-sulfonyl)piperidine-4-carboxylic acid (CAS 147959-02-2)
- 1-(Naphthalene-2-sulfonyl)piperidine-3-carboxylic acid (CAS 179051-22-0)
Recommended Standards
- 2,5-Bis(2-methoxyethoxy)terephthalic acid (CAS 1265529-85-8)
- Methyl 4-((5,8-difluoroquinolin-4-yl)amino)benzoate (CAS 1315353-25-3)
- 4-((4-Nitrophenyl)sulfonyl)piperazine-2-carboxylate (CAS 1246511-86-3)
- 1,4-Dichlorocyclohexane (CAS 19398-57-3)
- 2-(3-Amino-4,5,6,7-tetrahydro-2h-indazol-2-yl)acetic acid (CAS 1495589-00-8)
- 2-(2-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)ethyl)-7-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 860611-53-6)
- 4-Butyl-5-hydroxy-7-methyl-2H-chromen-2-one (CAS 690680-03-6)
- 3,6-Dihydro-5-(2-propenyloxy)-1(2H)-pyridinecarboxylic Acid Phenylmethyl Ester (CAS 244056-96-0)
- Irbesartan Impurity N10 (CAS 14309-25-2)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com