Acid Orange 7

• CAS: 633-96-5
• Catalog Number: ACM633965
• Category: Acid Dyes
• Molecular Weight: 350.35
• Molecular Formula: C16H11N2NaO4S
• Description: Acid orange 7, also known as 2-naphthol orange and Orange II, is a dye.Produced by coupling reaction between 2-Naphthol, or β-naphthol and diazonium compound of sulfanilic acid.
• Synonyms: Benzenesulfonicacid,4-[(2-hydroxy-1-naphthalenyl)azo]-,monosodiumsalt
• IUPAC Name: Sodium;4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
• Canonical SMILES: C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=C(C=C3)S(=O)(=O)[O-])O.[Na+]
• InChI: InChI=1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1
• InChI Key: CQPFMGBJSMSXLP-UHFFFAOYSA-M
• Melting Point: 164 °C
• Appearance: Powder
• Hazard Codes: Xi
• HS Code: 3204120000
• LogP: 4.94570
• PSA: 11.53
• Solubility In Water: 116 g/L (30 ºC)
• Stability: Stable under normal temperatures and pressures.
• Storage Conditions: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
• WGK Germany: 3

Custom Q&A

What is the molecular formula of Acid Orange 7 according to the reference?

The molecular formula of Acid Orange 7 is C16H11N2NaO4S.

What is the molecular weight of Acid Orange 7?

The molecular weight of Acid Orange 7 is 350.3 g/mol.

What are some synonyms for Acid Orange 7 mentioned in the reference?

Some synonyms for Acid Orange 7 include Orange II, C.I. Acid Orange 7, and Acid Orange A.

What is the parent compound of Acid Orange 7?

The parent compound of Acid Orange 7 is CID 11315 (4-((2-Hydroxy-1-naphthyl)azo)benzenesulphonic acid).

When was Acid Orange 7 created and last modified?

Acid Orange 7 was created on January 15, 2019, and last modified on December 23, 2023.

What is the IUPAC Name of Acid Orange 7?

The IUPAC Name of Acid Orange 7 is sodium;4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate.

What is the Canonical SMILES of Acid Orange 7?

The Canonical SMILES of Acid Orange 7 is C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=C(C=C3)S(=O)(=O)[O-]).[Na+].

What is the InChIKey of Acid Orange 7?

The InChIKey of Acid Orange 7 is CQPFMGBJSMSXLP-UHFFFAOYSA-M.

What is the CAS number for Acid Orange 7?

The CAS number for Acid Orange 7 is 633-96-5.

What is the topological polar surface area of Acid Orange 7?

The topological polar surface area of Acid Orange 7 is 111 Ų.

Synthetic Use

Downstream Synthesis Route 1

• 633-96-5

• 98-67-9
• 524-42-5

Reference: [1]Nam, Sangkil; Renganathan; Tratnyek, Paul G.
[Chemosphere, 2001, vol. 45, # 1, p. 59 - 65]

* For details of the synthesis route, please refer to the original source to ensure accuracy.