4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid

Basic Information

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CAS Number

22346-43-6

Molecular Formula

C11H11NO4S

Molecular Weight

253.28 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Basic Physical Properties

Melting Point

>360°C

Boiling Point

°Cat760mmHg

Refractive Index

1.4790 (estimate)

SMILES

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CNC1=CC2=CC(=CC(=C2C=C1)O)S(=O)(=O)O

InChI

InChI=1S/C11H11NO4S/c1-12-8-2-3-10-7(4-8)5-9(6-11(10)13)17(14,15)16/h2-6,12-13H,1H3,(H,14,15,16)

InChIKey

ZCNCWYFISJTFHB-UHFFFAOYSA-N

LogP

1.8337999999999997

Topological Polar Surface Area

86.63 Å²

Hydrogen Bond Donor/Acceptor

3 / 5

Complexity

364

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

MFCD00128846
4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
Kyselina 2-methylamino-5-naftol-7-sulfonova [Czech]
FT-0618674
1-Hydroxy-6-(methylamino)-3-naphthalenesulfonic acid
Kyselina N-methyl-I [Czech]
2-NAPHTHALENESULFONIC ACID, 4-HYDROXY-7-(METHYLAMINO)-
BRN 2656883
W-110543
N-Methyl J acid
A816126
Kyselina 2-methylamino-5-naftol-7-sulfonova
FJR73QHJ2R
4-Hydroxy-7-methylamino-2-naphthalenesulfonicacid
4-hydroxy-7-(methylamino)-2-naphthalenesulfonic acid
FT-0618675
N-Methyl I acid
2-(N-methylamino)-5-hydroxynaphthalene-7-sulfonic acid
CS-0336362
NS00027135
AS-12540
SCHEMBL1374756
DTXSID1066782
AKOS015900261
BIM-0015620.P001
4-Hydroxy-7-(methylamino)naphthalene-2-sulphonic acid
4-hydroxy-7-(methylamino)naphthalene-2-sulfonicacid
EINECS 244-924-4
CHEMBL1269251
4-hydroxy-7-(methylamino)naphthalene-2-sulfonic acid
5-Hydroxy-2-(methylamino)-7-naphthalenesulfonic acid

MDL Number

MFCD00128846

Customs Code

2922199090

FAQ

What is 4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6)?

4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6) is a organic compound with a molecular formula C13H11NO3S. It is a white or off-white crystalline powder with a distinctive odor. It is soluble in water and has a pKa of around 4.8.

What are the main uses of 4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6)?

4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6) is primarily used in pharmaceuticals as an intermediate for the synthesis of certain drugs. It also finds applications in the industrial sector for dye production and as a pH indicator in research settings.

Is 4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6) safe?

4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6) is generally safe under proper handling. However, it should be handled with care as it can cause skin irritation and eye damage. Protective gloves and safety goggles are recommended during handling. Avoid contact with eyes, skin, and inhalation.

How should 4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6) be stored?

4-Hydroxy-7-(methylamino)-2-naphthalenesulfonic acid (CAS: 22346-43-6) should be stored in a well-ventilated area, away from direct sunlight and sources of heat. Keep it in a tightly sealed container to prevent moisture absorption. Store at room temperature (15-25°C) and protect from excessive humidity.