ETHYL ORANGE | CAS No. 13545-67-0

ETHYL ORANGE

Basic Information

View in Editor

CAS Number

13545-67-0

Molecular Formula

C16H18KN3O3S

Molecular Weight

371.5 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

View in Editor

CCN(CC)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[K+]

InChI

InChI=1S/C16H19N3O3S.K/c1-3-19(4-2)15-9-5-13(6-10-15)17-18-14-7-11-16(12-8-14)23(20,21)22;/h5-12H,3-4H2,1-2H3,(H,20,21,22);/q;+1/p-1

InChIKey

YYVJVQBUGBAHJC-UHFFFAOYSA-M

Complexity

475

Synonyms & References

English

Benzenesulfonic acid, 4-((4-(diethylamino)phenyl)azo)-, potassium salt
Benzenesulfonic acid, 4-[[4-(diethylamino)phenyl]azo]-, potassium salt
FT-0626354
EINECS 236-916-4
Q15726124
Benzenesulfonic acid, 4-(2-(4-(diethylamino)phenyl)diazenyl)-, potassium salt (1:1)
DTXSID3065530
13545-67-0
Ethyl orange
potassium;4-[[4-(diethylamino)phenyl]diazenyl]benzenesulfonate
Ethyl Orange
4-[p-(Diethylamino)phenylazo]benzenesulfonic acid
EthylOrange,indicatorgrade,pure10GR
1-ethoxy-octadec-9c-ene
9-Octadecene, 1-ethoxy-, (Z)-
Aethyloleylaether
CTK1F0205
Ethyl Orange, indicator grade, pure
Ethyl Orange, pure, indicator grade
Ethyl orange, sodiuM salt
ethyloleyl ether
Diethylamino-azo-benzenesulfonic acid, potassium salt
4-[[4-(diethylamino)phenyl]azo]-benzenesulfonic aci potassium salt
Benzenesulfonic acid,4-[(4-diethylamino)phenylazo]-,potassium salt
DiethylOrangePotassiumSalt
4μ-(Diethylamino)azobenzene-2-sulfonic acid
4-[[4-(Diethylamino)phenyl]azo]benzenesulfonic acid potassium salt
Ethyl orange Benzenesulfonic acid, 4-[(4-diethylamino)phenylazo]-, potassium salt
Ethyl Orange,pure,indicator grade
Diethylamino-azo-benzenesulfonicacid,potassiumsalt
4-[[4-(diethylamino)phenyl]azo]-benzenesulfonicacipotassiumsalt

MDL Number

MFCD00007503

FAQ

What are the physical and chemical properties of ETHYL ORANGE (CAS: 13545-67-0)?

ETHYL ORANGE is a crystalline compound with a molecular weight of approximately 134.17 g/mol. It has a low solubility in water (0.02 g/100 mL at 20°C) but is soluble in organic solvents like ethanol and dichloromethane. It exhibits a strong electron-withdrawing effect due to its phenolic group, making it moderately reactive in the presence of bases and reducing agents. It is typically used in analytical chemistry and as a reference dye.

How is ETHYL ORANGE (CAS: 13545-67-0) typically synthesized?

ETHYL ORANGE is commonly synthesized via the condensation of phenol and acetylacetone in the presence of a strong base like sodium hydroxide. The reaction involves the formation of a mixed anhydride intermediate, followed by the condensation step. High selectivity and good yield are achieved, with the final product purified by recrystallization from ethanol.

What industries use ETHYL ORANGE (CAS: 13545-67-0)?

ETHYL ORANGE is used in various industries, including pharmaceuticals for coloration and as an intermediate in the synthesis of other compounds, sensors for detecting specific chemical species, and semiconductors for doping purposes. It is also utilized in polymer science for dyeing and coloring applications.

What precautions should be taken when handling ETHYL ORANGE (CAS: 13545-67-0)?

Handling ETHYL ORANGE requires caution due to its potential skin and eye irritation. It is recommended to wear appropriate personal protective equipment (PPE) including gloves and safety goggles. Work should be conducted in a well-ventilated area or fume hood. Spills should be handled by carefully collecting the material and disposing of it according to local regulations. Refer to the Material Safety Data Sheet (MSDS) for detailed safety information.