CAS 119-79-9

5-Amino-2-naphthalenesulfonic acid

Description:

5-Amino-2-naphthalenesulfonic acid, with the CAS number 119-79-9, is an organic compound characterized by its naphthalene structure substituted with an amino group and a sulfonic acid group. This compound appears as a solid, typically in a crystalline form, and is soluble in water due to the presence of the sulfonic acid group, which enhances its polarity. It is commonly used as a dye intermediate and in the synthesis of various azo dyes, owing to its ability to undergo electrophilic substitution reactions. The amino group provides basic properties, while the sulfonic acid group imparts acidic characteristics, making it a zwitterionic compound in certain pH ranges. Additionally, 5-amino-2-naphthalenesulfonic acid is known for its role in biochemical applications, particularly in the development of colorimetric assays and as a reagent in analytical chemistry. Safety data indicates that it should be handled with care, as it may cause irritation upon contact with skin or eyes.

Formula: C₁₀H₉NO₃S

InChI: InChI=1S/C10H9NO3S/c11-10-3-1-2-7-6-8(15(12,13)14)4-5-9(7)10/h1-6H,11H2,(H,12,13,14)

InChI key: InChIKey=UWPJYQYRSWYIGZ-UHFFFAOYSA-N

SMILES: NC=1C2=C(C=C(S(=O)(=O)O)C=C2)C=CC1

Synonyms:

• (5Or8)-Aminonaphthalene-2-Sulphonic Acid
• 1,6-Cleaves Acid
• 1,6-Cleve's acid
• 1,6-Cleves Acid
• 1-Amino-6-naphthalenesulfonic acid
• 1-Amino-6-sulfonaphthalene
• 1-Aminonaphthalene-6-Sulfonic Acid
• 1-Naphthylamine-6-Sulfonic Acid
• 1-Naphthylamine-6-sulphonic acid
• 2-Naphthalenesulfonic acid, 5-amino-
• 5-Aminonaphthalene-2-Sulfonic Acid
• 5-Aminonaphthalene-2-sulphonic acid
• 5-Naphthylamine-2-sulfonic acid
• 6-Sulfo-1-naphthylamine
• Aminonaphtalenesulfonicacid
• Cleve's acid
• Cleve's β-acid
• Cleves acid 1,6
• Mix Cleve'S Acid
• NSC 31506
• NSC 4984

5-Amino-2-naphthalenesulfonic Acid

CAS: 119-79-9

Formula: C₁₀H₉NO₃S

Purity: >97.0%(T)

Color and Shape: Orange to Brown to Dark purple powder to crystal

Molecular weight: 223.25

Ref: 3B-A0346

5-Aminonaphthalene-2-sulfonic acid, 97%

CAS: 119-79-9

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Formula: C₁₀H₉NO₃S

Purity: 97%

Color and Shape: Brown or purple to gray, Powder

Molecular weight: 223.25

Ref: 02-L03099

2-Naphthalenesulfonic acid, 5-amino-

CAS: 119-79-9

Formula: C₁₀H₉NO₃S

Purity: 97%

Color and Shape: Solid

Molecular weight: 223.2484

Ref: IN-DA000OZO

1-Aminonaphthalene-6-sulfonic acid

CAS: 119-79-9

1-Aminonaphthalene-6-sulfonic acid

Purity: 97%

Molecular weight: 223.25g/mol

Ref: 54-OR1030021

5-Aminonaphthalene-2-Sulphonic Acid pure, 98%

CAS: 119-79-9

Formula: C₁₀H₉NO₃S

Purity: min. 98%

Color and Shape: Greyish brown to pale purple to dark purple, Powder, Clear

Molecular weight: 223.25

Ref: SR-98372

5-Aminonaphthalene-2-sulfonic acid

CAS: 119-79-9

Formula: C₁₀H₉NO₃S

Purity: 97%(HPLC);RG

Color and Shape: Solid

Molecular weight: 223.25

Ref: 10-F363442

5-Amino-2-naphthalenesulfonic Acid, ~90%

Controlled Product

CAS: 119-79-9

Applications Fluorescent reagent.
References Briggs, J., et al.: Anal. Biochem., 389, 40 (2009), Baqi, Y., et al.: J. Med. Chem., 53, 2076 (2010),

Formula: C₁₀H₉NO₃S

Purity: ~90%

Color and Shape: Neat

Molecular weight: 223.25

Ref: TR-A618325