3-Chloro-4-hydroxybenzaldehyde
- CAS NO.：2420-16-8
- Empirical Formula: C7H5ClO2
- Molecular Weight: 156.57
- MDL number: MFCD00016981
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 04:49:54
What is 3-Chloro-4-hydroxybenzaldehyde?
Chemical properties
White solid
Properties of 3-Chloro-4-hydroxybenzaldehyde
| Melting point: | 133-137 °C (lit.) |
| Boiling point: | 150 °C / 14mmHg |
| Density | 1.2683 (rough estimate) |
| refractive index | 1.5812 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| pka | 6.30±0.18(Predicted) |
| form | powder to crystal |
| color | White to Light yellow to Light orange |
| Sensitive | Air Sensitive |
| CAS DataBase Reference | 2420-16-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 3-Chloro-4-hydroxybenzaldehyde(2420-16-8) |
Safety information for 3-Chloro-4-hydroxybenzaldehyde
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H317:Sensitisation, Skin H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. |
Computed Descriptors for 3-Chloro-4-hydroxybenzaldehyde
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