2-Chloroanthraquinone
- CAS NO.：131-09-9
- Empirical Formula: C14H7ClO2
- Molecular Weight: 242.66
- MDL number: MFCD00001227
- EINECS: 205-010-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:18:03
What is 2-Chloroanthraquinone?
Chemical properties
Pale yellow needle crystal. Insoluble in water, soluble in hot benzene, nitrobenzene, concentrated sulfuric acid.
The Uses of 2-Chloroanthraquinone
2-Chloroanthraquinone is an important dye intermediate that can be used to make alizarin and aminoanthraquinone. This product has been evaluated as a photo-reagent for the analysis of ginsenosides using photoreduction fluorescence (PRF) detection method.
Preparation
2-Chloroanthraquinone is prepared by condensing phthalic anhydride and chlorobenzene into p-chlorobenzoylbenzoic acid, and then cyclizing it with sulfuric acid.
Synthesis Reference(s)
Tetrahedron Letters, 24, p. 5499, 1983 DOI: 10.1016/S0040-4039(00)94122-4
Properties of 2-Chloroanthraquinone
| Melting point: | 209-211 °C (lit.) |
| Boiling point: | 345.65°C (rough estimate) |
| Density | 1.2377 (rough estimate) |
| refractive index | 1.5380 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| form | powder to crystal |
| color | White to Light orange to Yellow |
| Water Solubility | insoluble |
| BRN | 2051842 |
| InChI | InChI=1S/C14H7ClO2/c15-8-5-6-11-12(7-8)14(17)10-4-2-1-3-9(10)13(11)16/h1-7H |
| CAS DataBase Reference | 131-09-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Chloroanthraquinone(131-09-9) |
| EPA Substance Registry System | 9,10-Anthracenedione, 2-chloro- (131-09-9) |
Safety information for 2-Chloroanthraquinone
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H317:Sensitisation, Skin |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. |
Computed Descriptors for 2-Chloroanthraquinone
| InChIKey | FPKCTSIVDAWGFA-UHFFFAOYSA-N |
| SMILES | C1=C2C(C(=O)C3=C(C2=O)C=CC=C3)=CC=C1Cl |
2-Chloroanthraquinone manufacturer
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