1,4-Naphthalenedicarboxylic Acid CAS 605-70-9
| CAS No. | 605-70-9 |
| Molecular Formula | C12H8O4 |
| Molecular Weight | 216.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,4-Naphthalenedicarboxylic Acid (CAS 605-70-9), molecular formula C12H8O4 and molecular weight 216.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,4-Naphthalenedicarboxylic Acid (C12H8O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 216.19 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 1,4-Naphthalenedicarboxylic 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 | C12H8O4 |
| Molecular Weight | 216.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Naphthalenedicarboxylic Standards
- 1,2-Naphthalenedicarboxylic acid, 97% (CAS 2088-87-1)
- 1,3-Naphthalenedicarboxylic acid, 97% (CAS 2089-93-2)
- 1,6-Naphthalenedicarboxylic acid, 97% (CAS 2089-87-4)
- 1,8-Naphthalenedicarboxylic acid, 97% (CAS 518-05-8)
- 2,7-Naphthalenedicarboxylic acid, 97% (CAS 2089-89-6)
- 2,6-Naphthalenedicarboxylic Acid (CAS 1141-38-4)
- 2,6-Naphthalenedicarboxylic diacid dichloride (CAS 2351-36-2)
Recommended Standards
- 1,4-Dihydrochromeno[4,3-c]pyrazole-3-carboxylic acid (CAS 694507-52-3)
- 1,8-Dihydroxynaphthalene-2,7-dicarbaldehyde (CAS 688753-79-9)
- 1,3,5-Cyclohexanetricarboxylic Acid(cis- and trans- mixture) (CAS 25357-95-3)
- 1-2-O-Isopropylidene-α-D-glucofuranurono-6-3-lactone (CAS 20513-98-8)
- 3-(Cyanomethyl)-2-(difluoromethyl)-5-hydroxyisonicotinonitrile (CAS 1805287-10-8)
- (9R)-9-Amino-10,11-dihydro-6’-methoxycinchonane (CAS 522600-31-3)
- 1-Iodo-2-methoxy-3-methylbenzene (CAS 25922-05-8)
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- Trimetazidine nitroso D9 impurity (CAS CATO-C4X-180335)
- Ketoprofen Impurity 85 (CAS CATO-C4X-147185)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
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