alpha-Methylcinnamaldehyde
Also known as: 2-Methyl-3-phenyl-2-propenal, 2-Methyl-3-phenylacrolein, α-Methylcinnamic aldehyde, Methyl cinnamic aldehyde, FEMA 2697, (2E)-2-Methyl-3-phenylacrylaldehyde, alpha-Methyl-trans-cinnamaldehyde, 3-Phenyl-2-methylacrolein
alpha-Methylcinnamaldehyde (CAS 101-39-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H10O and a molecular weight of 146.186 g/mol. Key properties include a boiling point of 254.6±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 79.4±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 101-39-3
- Jingsj CID
- J-1990730-3
- Molecular Formula
- C10H10O
- Molecular Weight
- 146.186 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 254.6±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 79.4±0.0 °C |
| Exact Mass | 146.073166 |
| PSA | 17.07000 |
| LogP | 2.68 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.563 |
| Additional Property | <0.1 g/100 mL at 21 ºC |
Customs & Trade Information
| HS Code | 2912299000 |
|---|---|
| Summary | 2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of alpha-Methylcinnamaldehyde?
The CAS number of alpha-Methylcinnamaldehyde is 101-39-3.
What are the molecular formula and molecular weight of alpha-Methylcinnamaldehyde?
alpha-Methylcinnamaldehyde has molecular formula C10H10O and molecular weight 146.186 g/mol.
What are the upstream and downstream products of alpha-Methylcinnamaldehyde?
For alpha-Methylcinnamaldehyde, Upstream Products: Benzaldehyde, Propionaldehyde, (2E)-2-methyl-3-phenylprop-2-en-1-ol; Downstream Products: 2-Methyl-1-indanone, β-Methylstyrene, Isobutylbenzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alpha-Methylcinnamaldehyde (CAS 101-39-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990730-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.