2-Butenoic Acid
Aroma Chemical CAS 3724-65-0
A roasted burnt note.
Odor profile
| Descriptor 1 | Acidic |
| Descriptor 2 | Cheesy |
| Descriptor 3 | Green |
Identification
| CAS Number | 3724-65-0 |
| INCI Name | Crotonic acid |
| Category | Aroma Chemical |
| Formula | C4H6O2 |
| Mol. Weight | 86.09 |
| IUPAC Name | but-2-enoic acid |
| InChIKey | LDHQCZJRKDOVOX-UHFFFAOYSA-N |
Synonyms
but-2-enoic acid, 2-butenic acid, a-butenoic acid, alpha-butenoic acid, 2-butenoic acid (crotonic acid), crotonic acid, a-crotonic acid, alpha-crotonic acid, b-methacrylic acid, beta-methacrylic acid, 3-methyl acrylic acid, beta-methyl acrylic acid, 3-methylacrylic acid, b-methylacrylic acid, beta-methylacrylic acid
Physical and chemical data
| Boiling Point | 185.00 °C |
| Melting Point | 70.00 °C |
| Flash Point | 85.56 °C |
| Densitye | 1.02700 |
| Vapor Pressure | 0.505000 mmHg @ 25.00 C. (est) |
| LogP | 0.720 |
| Solubility | alcohol; water, 8.60E+04 mg/L @ 25 C (exp) |
| Appearance | white solid |
e Estimated from a closely related isomer of the same molecule. Actual values vary by supplier, grade and quality.
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.