1,3,6-Naphthalenetrisulfonic acid

Basic Information

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CAS Number

86-66-8

Molecular Formula

C10H8O9S3

Molecular Weight

368.37 g/mol

EINECS

201-690-8

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Density

1.919±0.06 g/cm3(Predicted)

SMILES

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OS(=O)(=O)c1ccc2c(cc(cc2c1)S(=O)(=O)O)S(=O)(=O)O

InChI

InChI=1S/C10H8O9S3/c11-20(12,13)7-1-2-9-6(3-7)4-8(21(14,15)16)5-10(9)22(17,18)19/h1-5H,(H,11,12,13)(H,14,15,16)(H,17,18,19)

InChIKey

ZPBSAMLXSQCSOX-UHFFFAOYSA-N

LogP

0.5799000000000002

pKa

-0.76±0.40(Predicted)

Topological Polar Surface Area

163.10999999999999 Å²

Hydrogen Bond Donor/Acceptor

3 / 9

Synonyms & References

English

naphthalene-1,3,6-trisulphonic acid
2,5,7-Naphthalenetrisulfonic acid
Naphthalene-1,3,6-trisulfonic acid
1,3,6-Naphthalenetrisulfonicacid
NAPHTALENE-1,3,6-TRISULFONIC ACID

MDL Number

MFCD00128840

EC Number

201-690-8

Customs Code

2904100090

FAQ

What is 1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8)?

1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8) is a trisulfonic acid derivative of naphthalene. It is a yellow crystalline solid with a high melting point and is often used as a pH indicator or in analytical chemistry for titration purposes.

What are the main uses of 1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8)?

1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8) is primarily used as a pH indicator in titrations and other analytical procedures. It is also used in the dye industry for creating certain types of dyes and pigments.

Is 1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8) safe?

1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8) is generally considered safe for laboratory use when proper precautions are taken. However, it should be handled with care due to its potential skin and eye irritation. Protective gloves and safety goggles are recommended.

How should 1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8) be stored?

1,3,6-Naphthalenetrisulfonic acid (CAS: 86-66-8) should be stored in a cool, dry place away from direct sunlight and heat sources. It is advisable to store it in a tightly sealed container to prevent moisture absorption, ensuring its stability and reactivity are maintained.