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Disperse Red 73

Disperse Red 73 structure

CAS No:
16889-10-4
Formula:
C18H16N6O2
Chemical Name:
Disperse Red 73
Synonyms:
Disperse Rubine GFL;2-[[4-[(2-cyanoethyl)ethylamino]phenyl]azo]-5-nitrobenzonitrile;C.I. Disperse Red 73 press cake;Benzonitrile, 2-4-(2-cyanoethyl)ethylaminophenylazo-5-nitro-;Rubine SE-GFL;Allilon Rubine FL;Balicron Rubine RD-GFL;Chemilene Rubine SE-GFL
Categories:
Dyes and Pigments > Dye

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Disperse Red 73 Basic Attributes

Molecular Weight：

348.36

Exact Mass：

348.36

EC Number：

240-923-8

UNII：

74YM5L40XM

TSCA：

TSCA listed

DSSTox ID：

DTXSID5044601

HScode：

2927000090

Characteristics

PSA：

121

XLogP3：

5.15886

Appearance：

Dark Red powder

Density：

1.22±0.1 g/cm3(Predicted)

Melting Point：

149-150 °C(Solv: 1,4-dioxane (123-91-1))

Boiling Point：

614.2±55.0 °C(Predicted)

Flash Point：

325.3ºC

Refractive Index：

1.621

Vapor Pressure：

0Pa at 20℃

Flammability characteristics：

Non flammable

PKA：

2.13±0.50(Predicted)

Safety Information

Precautionary statement(s)：

P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

GHS Classification：

|Warning|H315 (75.47%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 134 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

disperse red 73

Disperse Red 73 Use and Manufacturing

Methods of Manufacturing

Using 2-cyano-4-nitroaniline and N-ethyl-N-cyanoethylaniline as raw materials, first diazotize 2-cyano-4-nitroaniline, and then diazotize it with N-ethyl-N -Cyanoethyl aniline coupling product. After filtering, grinding and drying, the finished product is obtained. . Add nitrosyl sulfuric acid solution [made of 31g concentrated sulfuric acid (98%) and 1.5g sodium nitrite (99%)] into the diazotization reactor, control the temperature at 5-10℃, and slowly add 2-cyanide The acetic acid solution of 4-nitroaniline (made up of 20g glacial acetic acid and 3.6g 2-cyano-4-nitroaniline), complete the diazotization reaction in about 5h. Then slowly pour the diazonium liquid into 300 g of ice water, filter, and use the filtrate (diazo compound solution) for later use. Put the diazonium filtrate into the coupling reactor, and slowly add the sulfuric acid solution of the coupling components dropwise [prepared from 4.3g N-ethyl-N-cyanoethylaniline, 8g concentrated sulfuric acid (98%) and 150g ice water] , Control the temperature at 5-10°C until the end of the reaction. Then filter and wash until neutral to obtain the dye product, the yield is 85%-90%.

Uses

Dispersed ruby SE-GFL is suitable for dyeing polyester and its blended fabrics, such as polyester cotton, polyester-viscose, and also for dyeing acetate, triacetate, nylon and acrylic. It is one of the three primary colors of SE-type disperse dyes. It is often combined with disperse yellow SE-NGL and disperse blue SE-2R. It has good color matching performance and a wide range of color matching.

Disperse red 73 is a red dye derived from anthraquinone. It is used in plastics, textiles and cosmetics.

Manufacturing Info：

Benzonitrile, 2-[2-[4-[(2-cyanoethyl)ethylamino]phenyl]diazenyl]-5-nitro-: ACTIVE

Computed Properties

Molecular Weight:348.4
XLogP3:3.4
Hydrogen Bond Acceptor Count:7
Rotatable Bond Count:6
Exact Mass:348.13347377
Monoisotopic Mass:348.13347377
Topological Polar Surface Area:121
Heavy Atom Count:26
Complexity:590
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

2-Chloro-4-nitroaniline

Sulfuric acid