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Home/Compounds/Dye & Pigment/Acid orange 7
C16H11N2NaO4S
350.3 g/mol
Dye & Pigment

Orange II

CAS633-96-5EC211-199-0
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
acid dye for textiles

Acid Orange 7, commonly known as Orange II, is a member of naphthalenes used as an acid dye for textiles. It is also found in consumer products for commercial, institutional, and inside-the-home applications, including hair dressing.

acid dye for textilesingredient in hair dressing productscolorant in commercial and household products

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

StrongStructure SimilarSimilarity 1.00

Acid Red 151

CAS6406-56-0

synthetic acid dye

SimilarStructure SimilarSimilarity 0.75

Sunset yellow FCF

CAS2783-94-0

Food colorant

ApplicationSame Use

Acid blue 158

CAS6370-08-7

acid dye for textiles

ApplicationSame Use

Acid Red 183

CAS6408-31-7

acid dye for textiles

ApplicationSame Use

Tracid Brilliant Red B

CAS6416-66-6

acid dye for textiles

ApplicationSame Use

Acid Orange 56

CAS6470-20-8

acid dye for textiles

ReferenceSame Category

7-(Acetylamino)-4-hydroxy-2-naphthalenesulfonic acid

CAS6334-97-0

Naphthalene sulfonic acid dye intermediate

ReferenceSame Category

2-Amino-4-chloro-5-nitrophenol

CAS6358-07-2

dye intermediate

Identifiers
IUPAC Name

sodium 4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate

InChIKey

CQPFMGBJSMSXLP-UHFFFAOYSA-M

SMILES

C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=C(C=C3)S(=O)(=O)[O-])O.[Na+]

Synonyms (119)
  • ORANGEI
  • 11550 Orange
  • 2-Naphthol Orange II
  • 2-naphthol orange
  • AO-7 dye
  • Acid Leather Orange Extra
  • Acid Leather Orange Extra G
  • Acid Leather Orange Extra PRW
  • Acid Leather Orange PRW
  • Acid Orange
  • Acid Orange A
  • Acid orange 7
  • Acid orange 7 (Standard)
  • Acid orange ii
  • Acilan Orange II
  • Airedale Orange II
  • Amacid Orange Y
  • Atul Acid Orange II
  • Brasilan Orange A
  • Bucacid Orange A
  • C.I. ACID ORANGE
  • C.I. Acid Orange 7
  • Calcocid Orange Y
  • Certiqual Orange II
  • Colacid Orange
  • Curol Orange
  • D and C Orange No. 4
  • D&C Orange 4
  • DC ORANGE NO. 4
  • Diacid Orange II
  • Erio Orange II
  • Fenazo Orange
  • Hidacid Orange II
  • Hispacid Orange AF
  • Java Orange II
  • Kayaku Acid Orange II
  • Kiton Orange II
  • Kromon Lake Orange Toner
  • Lake Orange A
  • Lake Orange II YS
  • Leather Orange Extra
  • Lurazol Orange E
  • Lutetia Orange 3JR
  • Mandarin G
  • Mitsui Acid Orange II
  • Naphthalene Lake Orange G
  • Naphthalene Orange G
  • Naphtocard Orange II
  • Neklacid Orange II
  • Nitto Acid Orange II
  • No. 177 Orange Lake
  • Nubilon Orange R
  • ORANGE 4
  • Orange 2 sodium
  • Orange 2 sodium salt
  • Orange Extra N
  • Orange Extra P
  • Orange II
  • Orange II Certifed
  • Orange II Special For Lacquer
  • Orange II for Lakes
  • Orange II sodium salt
  • Orange IIC
  • Orange IIP
  • Orange IIS
  • Orange IISM
  • Orange No. 205
  • Orange Toner GRT
  • Orange Y
  • Orange YA
  • Orange YZ
  • Oranz kysela 7
  • Oranz kysela 7 [Czech]
  • Peeracid Orange II
  • Perca Orange GR
  • Persian Orange
  • Persian Orange Lake
  • Persian Orange X
  • Pure Orange II S
  • Rifa Acid Orange II
  • Solar Orange
  • Special Orange GR
  • Special Orange H
  • Symuler Orange Lake 43
  • Symulon Acid Orange II
  • Takaoka Acid Orange II
  • Tangarine Lake X-917
  • Tertracid Orange II
  • Tropaeolin OOO
  • Tropaeolin OOO 2
  • Tropaeolin OOO No. 2
  • Tropoclin OOO2 (Indicator)
  • Vondacid Orange II
  • beta-Naphthyl orange
  • beta-naphthol orange