Cerotic acid, or hexacosanoic acid, is a 26-carbon long-chain saturated fatty acid with the chemical formula CH3(CH2)24COOH.[1] It is most commonly found in beeswax and carnauba wax. It is a white solid, although impure samples appear yellowish.
Cerotic acid |
| Names |
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| Preferred IUPAC name |
| Identifiers |
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CAS Number | - 506-46-7

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3D model (JSmol) | |
Beilstein Reference | 1799681 |
| ChEBI | |
| ChEMBL | |
| ChemSpider | - 10037

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| ECHA InfoCard | 100.007.310  |
| EC Number | |
Gmelin Reference | 374172 |
| KEGG | |
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| UNII | - D42CQN6P36

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| - DTXSID7075050

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InChI=1S/C26H52O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26(27)28/h2-25H2,1H3,(H,27,28)  Key: XMHIUKTWLZUKEX-UHFFFAOYSA-N  InChI=1/C26H52O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26(27)28/h2-25H2,1H3,(H,27,28) Key: XMHIUKTWLZUKEX-UHFFFAOYAF
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O=C(O)CCCCCCCCCCCCCCCCCCCCCCCCC
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| Properties |
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Chemical formula | C26H52O2 |
| Molar mass | 396.700 g·mol−1 |
| Appearance | white solid |
| Density | 0.8198 g/cm3 (100 °C) |
| Melting point | 87.7 °C (189.9 °F; 360.8 K) |
| Boiling point | 250 °C (482 °F; 523 K) |
Solubility in water | negligible |
| Solubility | Soluble in ethanol, ether, chloroform, CS2, turpentine |
Refractive index (nD) | 1.4301 (100 °C) |
| Hazards |
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| GHS labelling: |
Pictograms |  |
Signal word | Warning |
Hazard statements | H315, H319, H335 |
Precautionary statements | P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 |
| NFPA 704 (fire diamond) | |
| Flash point | > 110 °C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
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| Infobox references |
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The name is derived from the Latin word cerotus, which in turn was derived from the Ancient Greek word κηρός (keros), meaning beeswax or honeycomb.
Cerotic acid is also a type of very long chain fatty acid that is often associated with the disease adrenoleukodystrophy, which involves the excessive saturation of unmetabolized fatty acid chains, including cerotic acid, in the peroxisome.