C6H10N2O4S
206.22 g/mol
cosmetic_ingredientDanger
P-Phenylenediamine sulfate
CAS16245-77-5EC240-357-1
Category
cosmetic_ingredient
Compound Class
Amine
Primary Use
Hair dye ingredient
p-Phenylenediamine sulfate is a salt form of p-phenylenediamine, a chemical compound commonly used as a hair dye ingredient. It appears as a crystalline solid and is a derivative of para-phenylenediamine.
Hair dye ingredient
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
StrongSame Parent
P-phenylenediamine
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hair dye and dye intermediate
SimilarStructure SimilarSimilarity 0.73
4,4''-Diamino-p-terphenyl
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research intermediate
SimilarStructure SimilarSimilarity 0.73
P,p'-Diaminoquaterphenyl
CAS53693-67-7
research reagent
SimilarStructure SimilarSimilarity 0.73
Benzidine
CAS92-87-5
dye intermediate for azo dyes
ReferenceSame Category
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Foam builder and stabilizer
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cosmetic ingredient antioxidant
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skin repair and wound healing
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Methyl tridecanoate
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cosmetic ingredient
Safety Reference
Danger
H301Toxic if swallowed
H311Toxic in contact with skin
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H331Toxic if inhaled
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for P-Phenylenediamine sulfate (CAS 16245-77-5) is 2921.51.
HS code (international, 6-digit)
2921.51
EU CN code (8-digit)
2921 51 19
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
benzene-1,4-diamine;sulfuric acid
InChIKey
UFPKLWVNKAMAPE-UHFFFAOYSA-N
SMILES
C1=CC(=CC=C1N)N.OS(=O)(=O)O
Synonyms (9)
- 1,4-Benzenediamine, sulfate
- 1,4-Diaminobenzene Sulfate
- 1,4-Phenylenediamine Sulfate
- Benzene1,4diammonium sulphate
- COLOREX PPDS
- COVASTYLE PPDS
- p-Phenylenediamine sulfate
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