1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, bariumsalt (2:1)

Basic Information

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CAS Number

1103-38-4

Molecular Formula

C20H14BaN2O4S

Molecular Weight

515.73 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

SMILES

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Oc1ccc2c(c1/N=N/c1ccc3c(c1S(=O)(=O)O)cccc3)cccc2.[Ba]

InChI

InChI=1S/C20H14N2O4S.Ba/c23-18-12-10-13-5-1-3-7-15(13)19(18)22-21-17-11-9-14-6-2-4-8-16(14)20(17)27(24,25)26;/h1-12,23H,(H,24,25,26);/b22-21+;

InChIKey

IKWHLVAHPTZGKC-QUABFQRHSA-N

LogP

4.979900000000003

Topological Polar Surface Area

99.32000000000001 Å²

Hydrogen Bond Donor/Acceptor

2 / 6

Complexity

726

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

Pigment Red 49:1
2-(2-Hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid barium salt (2:1)
Barium bis[2-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonate]
D & C Red No.12
Pigment Red 49(Ba)
RED R
barium(2+),2-[(2E)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]naphthalene-1-sulfonate
2-[(2E)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]naphthalene-1-sulfonate
barium bis{2-[(E)-(2-hydroxy-1-naphthyl)diazenyl]naphthalene-1-sulfonate}
barium lithol
C. I. PIGMENT RED 49:1
Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate]
Red 49:1
3144 Red R
C.I.15630:1
lithol red ba
C.I.PIGMENTRED49
Barium lithol red
D and C Red No.12
PIGMENT RED 49:1

MDL Number

MFCD00071951

FAQ

What are the physical and chemical properties of 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) (CAS: 1103-38-4)?

1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) is a crystalline solid with a molecular weight of approximately 519.44 g/mol. It has a solubility of about 0.05 g/L in water. This compound is stable under normal conditions but can react with acids to form lower molecular weight derivatives. It is used in various applications due to its unique chemical properties.

How is 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) (CAS: 1103-38-4) typically synthesized?

1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) is typically synthesized through a multi-step process involving the coupling of 2-hydroxy-1-naphthoic acid with naphthalenesulfonic acid, followed by the barium salt formation. The synthesis involves the use of organic solvents and appropriate catalysts to achieve high yield and selectivity.

What industries use 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) (CAS: 1103-38-4)?

1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) is utilized in industries such as pharmaceuticals, where it serves as an intermediate in the synthesis of certain drugs. It also finds applications in polymers, sensors, and semiconductors due to its specific chemical properties.

What precautions should be taken when handling 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1) (CAS: 1103-38-4)?

When handling 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, barium salt (2:1), it is important to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a fume hood to minimize exposure. Spills should be cleaned up immediately using appropriate absorbents, and the area should be well-ventilated. Always refer to the Safety Data Sheet (SDS) for specific guidelines on handling and storage.