6-Amino-1-naphthalenesulfonic acid

Basic Information

View in Editor

CAS Number

81-05-0

Molecular Formula

C10H9NO3S

Molecular Weight

223.25 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Physical State

Powder

Melting Point

173.38 °C

Boiling Point

434.16 °C

Density

1.3588 (rough estimate)

Refractive Index

1.6500 (estimate)

SMILES

View in Editor

C1=CC2=C(C=CC(=C2)N)C(=C1)S(=O)(=O)O

InChI

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

InChIKey

YUNBHHWDQDGWHC-UHFFFAOYSA-N

LogP

1.6687

Topological Polar Surface Area

80.39 Å²

Hydrogen Bond Donor/Acceptor

3 / 4

Complexity

322

Safety Information

View Safety Information

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Hazard Class

Class 8 Class 8

Synonyms & References

English

CS-W014231
2-NAPHTHYLAMINE-5-SULFONIC ACID [MI]
Gycolan Green BFL
H11791
DTXSID10230836
6-NAPHTHYLAMINE-1-SULFONIC ACID
2-Aminonaphthalene-5-sulfonic acid
STL124103
2-AMINO-5-SULFONAPHTHALENE
6-Amino-1-naphthalenesulfonic acid
FT-0631362
2-Amino-5-naphthalenesulfonic acid
2-aminonaphthalene-5-sulphonic acid
Dahl's Acid
6-aminonaphthalene-1-sulfonic acid
YUNBHHWDQDGWHC-UHFFFAOYSA-N
EINECS 201-318-4
A0347
MFCD00035724
6-Amino-1-naphthalenesulfonic acid, AldrichCPR
AKOS005716833
W-104220
CHROMOTROPEFB
AC-14167
6-Amino-1-naphtalenesulfonic acid
AE-641/00781028
BS-4318
1-Naphthalenesulfonic acid, 6-amino-
6-aminonaphthalen-1-sulfonsyre
Q27294266
UNII-Y4SEI692W3

MDL Number

MFCD00035724

Customs Code

29269095

FAQ

What is 6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0)?

6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0) is an organic compound with the formula C10H7NO3S. It is a water-soluble dye and is commonly used as a pH indicator in analytical chemistry. It has a purplish-red color in acidic solutions and a green color in basic solutions.

What are the main uses of 6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0)?

6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0) is primarily used as a pH indicator in analytical chemistry. It is also employed in water treatment for its sulfonic acid group, which can be used in various industrial applications. Additionally, it is used in research for its color-changing properties and as a reagent in biochemistry and organic synthesis.

Is 6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0) safe?

6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0) is generally considered safe for use in analytical chemistry and industrial applications when handled with appropriate precautions. However, it should be stored away from direct sunlight and kept in a cool, dry place to prevent degradation. Protective gloves and goggles should be worn during handling to avoid skin and eye contact.

How should 6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0) be stored?

6-Amino-1-naphthalenesulfonic acid (CAS: 81-05-0) should be stored in a cool, dry place, away from direct sunlight and heat sources. It should be kept in a tightly sealed container to prevent moisture absorption. The storage area should be well-ventilated to avoid the formation of explosive mixtures with air. Containers should be checked regularly for any signs of deterioration or leakage.