1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt

Basic Information

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CAS Number

1936-15-8

Molecular Formula

C16H10N2Na2O7S2

Molecular Weight

452.37 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

141 ºC

Water Solubility

5 g/100 mL (20 ºC)

Flash Point

14 °C

Solubility

H2O: soluble1mg/mL

SMILES

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Oc1ccc2c(c1/N=N/c1ccccc1)c(cc(c2)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

InChI

1S/C16H12N2O7S2.2Na/c19-13-7-6-10-8-12(26(20,21)22)9-14(27(23,24)25)15(10)16(13)18-17-11-4-2-1-3-5-11;;/h1-9,19H,(H,20,21,22)(H,23,24,25);;/q;2*+1/p-2/b18-17+;;

InChIKey

HSXUHWZMNJHFRV-QIKYXUGXSA-L

LogP

4.93060

pKa

12.8(at 25℃)

Complexity

724

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

Stability

Stable. Incompatible with strong oxidizing agents.

Sensitiveness

对湿度敏感

Synonyms & References

English

Acid Orange 10
1,3-Naphthalenedisulfonicacid,7-hydroxy-8-(phenylazo)-,disodiumsalt
1370orange
1-phenylazo-2-naphthol-6,8-disulphonicacid,disodiumsalt
3-naphthalenedisulfonicacid,7-hydroxy-8-(phenylazo)-disodiumsalt
7-hydroxy-8-(phenylazo)-1,3-naphthalenedisulphonicacid,disodiumsalt
acidfastorangeegg
ORANGE G
ORANGE G C.I. 16230 BIOLOGICAL STAIN
ORANGE G SODIUM SALT
1-Phenylazo-2-naphthol-6,8-disulfonic acid disodium salt
1-Phenylazo-2-naphthol-6,8-disulfonic acid disodium salt,7-Hydr
7-Hydroxy-8-phenylazo-1,3-naphthalenedisulfonic acid disodium salt
Acid orange G
C.I. 16230
c.i.27
ciorangeg
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate
Fast light orange G
OG-6
ORA
Orange G,certified
Orange G,high purity biological stain
orange yellow dye
orangegg
oranzg
oranzgg
7-Hydroxy-8-(phenylazo)-1,3-naphthalenedisulfonic acid disodium salt
Wool Orange 2G
Orange G6
C.I. Acid Orange 10

MDL Number

MFCD00012457

Customs Code

32041200

FAQ

What is 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8)?

1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8) is a sodium salt of a naphthalene-based sulfonic acid derivative. Its chemical formula is C14H10N2O4S2Na2. The compound contains a 7-hydroxy group and a phenylazo linkage, making it a key intermediate in dye synthesis. It is typically a white crystalline solid with good water solubility and is used in various industrial and research applications.

What are the main uses of 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8)?

This compound is primarily used in the production of azo dyes and pigments due to its chemical structure. It serves as an intermediate in pharmaceuticals for developing compounds with specific functional groups. Additionally, it finds applications in the food industry as a flavor enhancer and in research for material science and chemical synthesis. Its versatility makes it valuable in multiple sectors.

Is 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8) safe?

The safety of 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8) depends on handling conditions. While it is generally considered less toxic than its parent acid, it may cause skin or eye irritation. Safety standards recommend using protective gloves, goggles, and ventilation. Always follow OSHA guidelines and handle in well-ventilated areas to minimize exposure risks.

How should 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8) be stored?

Store 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-(phenylazo)-, disodium salt (CAS: 1936-15-8) in a cool, dry place (2-8°C), away from light and moisture. Use airtight containers to prevent humidity exposure and maintain stability. Avoid contact with incompatible materials and ensure proper labeling to ensure chemical safety and prolong shelf life.