3-Chloro-4-hydroxybenzaldehyde
Also known as: 3-CHLORO-4-HYDROXYBENZALDEHYDE, 3-CHLORO-4-HYROXYBENZALDEHYDE, 3-Chlor-4-hydroxy-benzaldehyd, 3-Chloro-4-hydroxybenzaldehyde 98%, 3-Chloro-4-hydroxybenzaldehyde, 99+%, 3-chloro-4-hydroxy-benzaldehyde, 4-hydroxy-3-chlorobenzaldehyde, AKOS B028967, Benzaldehyde, 3-chloro-4-hydroxy-, Benzaldehyde,3-chloro-4-hydroxy, MFCD00052184, TIMTEC-BB SBB004014, TIMTEC-BB SBB005887, VHR DQ CG, NSC 85482
3-Chloro-4-hydroxybenzaldehyde (CAS 2420-16-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H5ClO2 and a molecular weight of 156.566 g/mol. Key properties include a melting point of 145-147 °C(lit.), a boiling point of 251.1±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 105.6±21.8 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2420-16-8
- Jingsj CID
- J-1325209-0
- Molecular Formula
- C7H5ClO2
- Molecular Weight
- 156.566 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 145-147 °C(lit.) |
|---|---|
| Boiling Point | 251.1±20.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 105.6±21.8 °C |
| Exact Mass | 155.997803 |
| PSA | 37.30000 |
| LogP | 1.97 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.632 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2913000090 |
|---|---|
| Summary | HS: 2913000090 halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912 Educational tariff:17.0% Tax rebate rate:9.0% Regulatory conditions:none Most favored nation tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Chloro-4-hydroxybenzaldehyde?
The CAS number of 3-Chloro-4-hydroxybenzaldehyde is 2420-16-8.
What are the molecular formula and molecular weight of 3-Chloro-4-hydroxybenzaldehyde?
3-Chloro-4-hydroxybenzaldehyde has molecular formula C7H5ClO2 and molecular weight 156.566 g/mol.
Is 3-Chloro-4-hydroxybenzaldehyde hazardous?
3-Chloro-4-hydroxybenzaldehyde has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of 3-Chloro-4-hydroxybenzaldehyde?
For 3-Chloro-4-hydroxybenzaldehyde, Upstream Products: 4-Hydroxybenzaldehyde, 2-Chloro-4-methylphenol, 3-Chloro-4-hydroxybenzyl alcohol; Downstream Products: 3-Chloro-4-hydroxybenzyl alcohol, 3-Bromo-5-chloro-4-hydroxybenzaldehyde, 3-chloro-4-hydroxybenzonitrile.
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-Chloro-4-hydroxybenzaldehyde (CAS 2420-16-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325209-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.