Cinnamic anhydride CAS 538-56-7
| CAS No. | 538-56-7 |
| Molecular Formula | C18H14O3 |
| Molecular Weight | 278.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H14O3, Cinnamic anhydride contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 278.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Cinnamic anhydride (CAS 538-56-7), molecular formula C18H14O3 and molecular weight 278.30 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Cinnamic anhydride 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 | C18H14O3 |
| Molecular Weight | 278.30 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Cinnamic Standards
- trans-Cinnamic anhydride (CAS 21947-71-7)
- Cinnamic Acid-Benzyl Ester (CAS 103-41-3)
- Cinnamic Acid Related Compound 1 (CAS CATO-C4X-25212)
- 619-89-6 Cinnamic acid, p-nitro- p-Nitrocinnamic acid 4-Nitrocinnamic acid 2-Propenoic acid, 3-(4-nitrophenyl)- CCRIS 1665 EINECS 210-617-9 3-(4-Nitrophenyl)acrylic acid 3-(4-Nitrophenyl)propenoic acid NSC 2067 (CAS 619-89-6)
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- (Z)-Cinnamic Acid Ethyl Ester (CAS 4610-69-9)
- 350-90-3 Cinnamic acid, alpha-fluoro- alpha-Fluorocinnamic acid 2-Propenoic acid, 2-fluoro-3-phenyl- (9CI) 1-09-00-00237 (Beilstein Handbook Reference) BRN 2501318 EINECS 206-508-0 2-Fluoro-3-phenyl-2-propenoic acid NSC 102780 (CAS 350-90-3)
- trans-Cinnamic-d5 Acid (phenyl-d5) (CAS 352431-48-2)
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