C14H8O4
240.21 g/mol
Dye & PigmentWarning
Quinizarin
CAS81-64-1EC201-368-7
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Solvent dye and chemical intermediate
Quinizarin, also known as 1,4-dihydroxyanthraquinone, is an orange or red-brown crystalline organic compound derived from anthraquinone. It is primarily used as a solvent dye and chemical intermediate in various industrial applications.
Solvent dyeChemical intermediate
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Indanthrene
CAS81-77-6
Vat blue dye for textiles and paints
ReferenceSame Category
6-Bromo-3-methyl-3H-dibenz[f,ij]isoquinoline-2,7-dione
CAS81-85-6
dye intermediate
ReferenceSame Category
Rhodamine B
CAS81-88-9
Dye for paper and textiles
ReferenceSame Category
3-Bromobenzanthrone
CAS81-96-9
dye intermediate
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Quinizarin (CAS 81-64-1) is 2914.69.
HS code (international, 6-digit)
2914.69
EU CN code (8-digit)
2914 69 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1,4-dihydroxyanthracene-9,10-dione
InChIKey
GUEIZVNYDFNHJU-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C(=O)C3=C(C=CC(=C3C2=O)O)O
Synonyms (28)
- 1,4-Dihydroxyanthrachinon
- 1,4-Dihydroxyanthraquinone
- 1,4-Dioxyanthraquinone
- 1,4-Doa
- 1,4-Doa [Russian]
- 9, 1,4-dihydroxy-
- Anthraquinone, 1,4-dihydroxy-
- C.I.Solvent Orange 86
- Chinizarin
- DIHYDROXYANTHRAQUINONE, 1,4-
- Macrolex Orange GG
- Quinizarin
- Quinizarine
- Smoke Orange R
- Solvent Orange 86
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