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
Compared with other compounds in its class, the molecular weight of 278.26 g/mol gives 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 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
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 high-purity analytical reference standard with the molecular formula C14H14O6 and a molecular weight of 278.26 g/mol.
Structurally, 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 (C14H14O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 278.26 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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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- tributyl(3,3,3-trifluoroprop-1-ynyl)stannane (CAS 64185-12-2)
- 3-(2-Oxoquinolin-1(2H)-yl)propanenitrile (CAS 25420-48-8)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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