Trimethylboron
Also known as: Trimethylborane, Trimethylborine, Borane, trimethyl-, (CH3)3B, Trimethyl boron
Trimethylboron (CAS 593-90-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H9B and a molecular weight of 55.91460 g/mol. Key properties include a melting point of -161.5ºC, a boiling point of 20ºC at 760 mmHg and a density of 0.559 g/cm3. It is classified under GHS with signal word Danger and hazard statements H280 and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 593-90-8
- Jingsj CID
- J-29065-3
- Molecular Formula
- C3H9B
- Molecular Weight
- 55.91460 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -161.5ºC |
|---|---|
| Boiling Point | 20ºC at 760 mmHg |
| Density | 0.559 g/cm3 |
| Exact Mass | 56.07970 |
| LogP | 1.37060 |
| Refractive Index | 1.311 |
GHS Safety & Compliance
- H280
- H314 — Causes severe skin burns and eye damage
Frequently Asked Questions
What is the CAS number of Trimethylboron?
The CAS number of Trimethylboron is 593-90-8.
What are the molecular formula and molecular weight of Trimethylboron?
Trimethylboron has molecular formula C3H9B and molecular weight 55.91460 g/mol.
Is Trimethylboron hazardous?
Trimethylboron has GHS signal word Danger and hazard statements H280; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Trimethylboron?
For Trimethylboron, Upstream Products: Methylmagnesium bromide, Triisopropyl borate, Trimethylboroxine; Downstream Products: bromodimethylborane, Methylboronic acid, Trimethylboroxine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethylboron (CAS 593-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29065-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.