L56XQD1V6Y 81-30-1 Naphthalenetetracarboxylic dianhydride (2)Benzopyrano(6,5,4-def)(2)benzopyran-1,3,6,8-tetrone 1,4,5,8-Naphthalenetetracarboxylic acid, 1,8:4,5-dianhydride 1,4,5,8-Naphthalenetetracarboxylic 1,8:4,5-dianhydride (8CI) Naphthalene-1,8:4,5-tetracarboxylic dianhydride 5-19-05-00423 (Beilstein Handbook Reference) BRN 0272788 2,7-Dioxapyrene-1,3,6,8-tetrone EINECS 201-342-5 1,4,5,8-Naphthalenetetracarboxylic acid anhydride 1,4,5,8-Naphthalenetetracarboxylic acid dianhydride 1,4,5,8-Naphthalenetetracarboxylic dianhydride 1,8:4,5-Naphthalenetetracarboxylic dianhydride NSC 84241 NTCDA UNII-L56XQD1V6Y CAS 81-30-1
| CAS No. | 81-30-1 |
| Molecular Formula | C14H14O6 |
| Molecular Weight | 278.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
L56XQD1V6Y 81-30-1 Naphthalenetetracarboxylic dianhydride (2)Benzopyrano(6,5,4-def)(2)benzopyran-1,3,6,8-tetrone 1,4,5,8-Naphthalenetetracarboxylic acid, 1,8:4,5-dianhydride 1,4,5,8-Naphthalenetetracarboxylic 1,8:4,5-dianhydride (8CI) Naphthalene-1,8:4,5-tetracarboxylic dianhydride 5-19-05-00423 (Beilstein Handbook Reference) BRN 0272788 2,7-Dioxapyrene-1,3,6,8-tetrone EINECS 201-342-5 1,4,5,8-Naphthalenetetracarboxylic acid anhydride 1,4,5,8-Naphthalenetetracarboxylic acid dianhydride 1,4,5,8-Naphthalenetetracarboxylic dianhydride 1,8:4,5-Naphthalenetetracarboxylic dianhydride NSC 84241 NTCDA UNII-L56XQD1V6Y (CAS 81-30-1) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C14H14O6. Molecular weight: 278.26 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C14H14O6 |
| Molecular Weight | 278.26 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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- (2S)-2-Hydroxy-2-methyl-3-oxobutanoic Acid Phenylmethyl Ester (CAS 442159-35-5)
- (E)-3-(2,3-dibromo-5-ethoxy-4-(2-ethoxy-2-oxoethoxy)phenyl)acrylic acid (CAS 937999-76-3)
- methyl 4-formylpiperidine-1-carboxylate (CAS 916078-41-6)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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