2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-

Basic Information

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CAS Number

3737-95-9

Molecular Formula

C16H12O3

Molecular Weight

252.26 g/mol

Basic Physical Properties

Melting Point

300 ºC

Boiling Point

°Cat760mmHg

Density

1.6000

SMILES

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OC(=O)/C(=C\c1ccccc1)/C(=O)c1ccccc1

InChI

InChI=1S/C16H12O3/c17-15(13-9-5-2-6-10-13)14(16(18)19)11-12-7-3-1-4-8-12/h1-11H,(H,18,19)/b14-11-

InChIKey

UMPNMJHTRNHHAL-KAMYIIQDSA-N

LogP

3.0375000000000014

Topological Polar Surface Area

54.37 Å²

Hydrogen Bond Donor/Acceptor

1 / 3

Complexity

798

Safety Information

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GHS Hazard Pictograms

H315

H319

H335

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.

Synonyms & References

English

3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid
Calconcarboxylic acid
2-hydroxy-1(2-hydroxy-4-sulfo-1-*naphthylazo)3-na
2,2-dihydroxy-4-sulpho-1,1-azonaphthalene-3-carboxylic acid
3-Hydroxy-4-(2-hydroxy-4-sulpho-1-naphthylazo)-2-naphthalenecarboxylic acid~Patton and Reeders
2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic Acid (1:100 diluted with K2SO4)
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylicacid,indicatorgrade,pure10GR
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylicacid,indicatorgrade,pure250GR
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylicacid,indicatorgrade,pure50GR
3-HYDROXY-4(2-HYDROXY-4-SULFO-1-NAPHTYLAZO)NAPHTHALENE-2-CARBOXYLIC ACID, INDICATOR
NN diluted with Potassium Sulfate
1-(2-Hydroxy-4-sulfo-1-naphthylazo)-2-hydroxy-3-naphthoic acid
2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic Acid
3-hydroxy-4(2-hydroxy-4-sulfo-1-naphthyl-azo)-2-naphthalenecarboxylic acid
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naph
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid, pure, indicator grade
3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid,indicator grade
3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthyl)azo]naphthalene-2-carboxylic acid
Calcon-carboxylic Acid
CalconCarboxylicAcidGr
CAL-RED(R)
HHSNN
IND
Indicator
Patton and Reeder Dye
Calcon-carboxylic Acid (1:100 diluted with K2SO4)
Cal Red (1:100 diluted with K2SO4)
Patton-Reeder indicator
Calconcarbonic acid
Calcon 3-carboxylic acid
Patton and Reeder's indicator

MDL Number

MFCD00004078

Customs Code

2842909090

FAQ

What is 2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-(CAS: 3737-95-9)?

2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]- (CAS: 3737-95-9) is a synthetic organic compound containing a naphthalene ring with multiple functional groups. It is a yellow solid with strong acidic properties due to the carboxylic and sulfonic acid groups. The compound is known for its intense color and is commonly used as a dye or pigment in industrial and research applications.

What are the main uses of 2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-(CAS: 3737-95-9)?

This compound is primarily used in the production of pH indicators, dye intermediates, and fluorescent materials. It finds applications in pharmaceutical research, industrial coloring, and as a component in chemical synthesis. Its unique chromophore structure makes it valuable for analytical and optical purposes.

Is 2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-(CAS: 3737-95-9) safe?

While 2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]- (CAS: 3737-95-9) is generally considered safe in controlled environments, it should be handled with care. Proper protective equipment, such as gloves and goggles, is recommended. It may cause irritation to the skin and eyes, and safety data sheets should be consulted for detailed handling and disposal guidelines.

How should 2-Naphthalenecarboxylic acid,3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]-(CAS: 3737-95-9) be stored?

This compound should be stored in a cool, dry, and dark place to maintain its stability and prevent degradation. It is best kept in a sealed, airtight container away from moisture and light. Storage at temperatures below 25°C is recommended to ensure optimal shelf life and chemical integrity.