C16H10ClN3O3
327.72 g/mol
Dye & PigmentWarning
1-((2-Chloro-4-nitrophenyl)azo)-2-naphthol
CAS2814-77-9EC220-562-2
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Pigment in cosmetics and inks
This compound is an organic pigment used primarily in cosmetics and inks. It is commonly known as Pigment Red 36 or CI 12085, and its structure includes an azo group linking a chloronitrophenyl ring to a naphthol system.
Pigment in cosmetic lip products (max 3% w/w)Pigment in printing inksPigment in colored pencils and low-cost articles
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
SimilarStructure SimilarSimilarity 0.77
C.I. Pigment Orange 5
CAS3468-63-1
Pigment in printing inks and paints
ReferenceSame Category
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Azoic dye diazo component
ReferenceSame Category
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coupler in oxidative hair dyeing
ReferenceSame Category
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CAS2835-99-6
Hair dye ingredient
ReferenceSame Category
Direct blue 218
CAS28407-37-6
Direct dye for cellulose and textiles
Safety Reference
Warning
H319Causes serious eye irritation
H413May cause long lasting harmful effects to aquatic life
Customs Tariff Classification
The international HS code for 1-((2-Chloro-4-nitrophenyl)azo)-2-naphthol (CAS 2814-77-9) is 3204.17.
HS code (international, 6-digit)
3204.17
EU CN code (8-digit)
3204 17 00
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-[(2-chloro-4-nitrophenyl)diazenyl]naphthalen-2-ol
InChIKey
XLTMWFMRJZDFFD-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C=C3)[N+](=O)[O-])Cl)O
Synonyms (62)
- 12094 Red
- Adc Permanent Red Toner R
- American vermilion
- Blazing Red
- Carnelio Red R
- Chlorparanitraniline Red
- D and C Red No. 36
- D&C Red No. 36
- Dainichi Permanent Red RX
- Duplex Permaton Red L 20-7022
- Fast Orange 3R
- Fast Orange 3RJ
- Fastona Red R
- Flame tones
- Flaming Red
- Graphtal Red RL
- Graphtol Red RL
- Irgalite Red PRR
- Isol Fast Red R
- Isol Fast Red RG
- Kromon Red R
- Latexol Red J
- Lincoln Red 1002
- Lutetia Fast Orange 3R
- Monolite Fast Red G
- Monolite Fast Red GA
- Monolite Fast Red GF
- No. 1 ForthFast Red R
- Oralith Red
- Permanent Red BFR
- Permanent Red F
- Permanent Red R
- Permanent Red R Extra
- Permanent Red RG Extra
- Permanent Red Toner R
- Permansa Red
- Permaton Red XL 20-7015
- Pyrotone Red Toner RA-5520
- RED 36
- Red No. 228
- Rubber Red R Extra
- Segnale Light Red PRG
- Silopol Red G
- Silosol Red GN
- Siloton Red 2G
- Syton Fast Red R
- Tanager Red X-761
- Tiger Orange
- Versal Fast Red R
- Vulcafix Red J
- Vulcafor Orange R
- Vulcan Red R
Sourcing 1-((2-Chloro-4-nitrophenyl)azo)-2-naphthol?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.