2-Methyl-3-butyn-2-amine
Also known as: 1,1-Dimethylpropargylamine, 1,1-Dimethyl-2-propynylamine, 1,1-Dimethylprop-2-ynylamine, 1,1-Dimethylpropynylamine, 2-methylbut-3-yn-2-amine, 3-Amino-3-methyl-1-butyne, 3-Amino-3-methylbut-1-yne, 1-Amino-1,1-dimethyl-2-propyne, 2-methyl-3-butyn-2-ylamine, 3-Butyn-2-amine, 2-methyl-
2-Methyl-3-butyn-2-amine (CAS 2978-58-7) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H9N and a molecular weight of 83.132 g/mol. Key properties include a boiling point of 79.5±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 2.2±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2978-58-7
- Jingsj CID
- J-1505118-0
- Molecular Formula
- C5H9N
- Molecular Weight
- 83.132 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 79.5±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 2.2±0.0 °C |
| Exact Mass | 83.073502 |
| PSA | 26.02000 |
| LogP | 0.27 |
| Vapor Pressure | 88.8±0.1 mmHg at 25°C |
| Refractive Index | 1.451 |
| Storage Conditions | Flammables area |
Customs & Trade Information
| HS Code | 2921199090 |
|---|---|
| Summary | 2921199090 other acyclic monoamines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Methyl-3-butyn-2-amine?
The CAS number of 2-Methyl-3-butyn-2-amine is 2978-58-7.
What are the molecular formula and molecular weight of 2-Methyl-3-butyn-2-amine?
2-Methyl-3-butyn-2-amine has molecular formula C5H9N and molecular weight 83.132 g/mol.
What are the upstream and downstream products of 2-Methyl-3-butyn-2-amine?
For 2-Methyl-3-butyn-2-amine, Upstream Products: 3-Chloro-3-methyl-1-butyne, tert-butyl (2-methylbut-3-yn-2-yl)carbamate, 2-Methyl-3-butyn-2-ol; Downstream Products: 3-acetamido-3-methyl-1-butyne, N-tert-Amyl-1,1-dimethylpropargylamine, N-tert-Amyl-1,1-dimethylallylamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methyl-3-butyn-2-amine (CAS 2978-58-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1505118-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.