3,4-dimethylbenzoyl chloride
Also known as: 3,4-DIMETHYL-BENZOYL CHLORIDE, 3,4-DIMETHYLBENZENE-1-CARBONYL CHLORIDE, 3,4-Dimethyl-benzoylchlorid, 3,4-Dimethylbenzoyl chloride 95%, 3,4-Dimethylbenzoylchloride, 3,4-dimethylbenzoic acid chloride, 3,4-dimethylbenzoyl chloride, 4-(Chlorocarbonyl)-o-xylene, 4-(Chloroformyl)-o-xylene, Benzoyl chloride, 3,4-dimethyl-, MFCD00045219
3,4-dimethylbenzoyl chloride (CAS 21900-23-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H9ClO and a molecular weight of 168.62000 g/mol. Key properties include a boiling point of 257.4ºC at 760mmHg, a density of 1.136g/cm3 and a flash point of 112.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21900-23-2
- Jingsj CID
- J-1440848-1
- Molecular Formula
- C9H9ClO
- Molecular Weight
- 168.62000 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 257.4ºC at 760mmHg |
|---|---|
| Density | 1.136g/cm3 |
| Flash Point | 112.4ºC |
| Exact Mass | 168.03400 |
| PSA | 17.07000 |
| LogP | 2.68240 |
| Vapor Pressure | 0.0145mmHg at 25°C |
| Refractive Index | 1.534 |
| Storage Conditions | Store under Nitrogen |
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives 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 3,4-dimethylbenzoyl chloride?
The CAS number of 3,4-dimethylbenzoyl chloride is 21900-23-2.
What are the molecular formula and molecular weight of 3,4-dimethylbenzoyl chloride?
3,4-dimethylbenzoyl chloride has molecular formula C9H9ClO and molecular weight 168.62000 g/mol.
What are the upstream and downstream products of 3,4-dimethylbenzoyl chloride?
For 3,4-dimethylbenzoyl chloride, Upstream Products: 3,4-Dimethylbenzoic acid, o-xylene, 4-Bromo-1,2-dimethylbenzene; Downstream Products: 3,4-Dimethylbenzaldehyde, 3,4-dimethylbenzamide, 3',4'-Dimethylacetophenone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-dimethylbenzoyl chloride (CAS 21900-23-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1440848-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.