(51811-42-8) disperse orange 76

Name	3-[[4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]ethylamino]propiononitrile
Synonyms	C.I. Disperse Orange 37 (51811-42-8) disperse orange 76 C.I. Disperse Orange 76 press cake 3-[4-(2,6-Dichloro-4-nitrophenylazo)-N-ethylanilino]propionitrile 3-[p-[(2,6-Dichloro-4-nitrophenyl)azo]-N-ethylanilino]propionitrile 3-[[4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]ethylamino]-propanenitril 3-[ethyl[4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]amino]-Propanonitrile 3-[[4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]ethylamino]propiononitrile Propanenitrile,3-[[4-[(2,6-dichloro-4-nitrophenyl)azo]phenyl]ethylamino]-
CAS	13301-61-6
EINECS	236-325-1
InChI	InChI=1/C17H15Cl2N5O2/c1-2-23(9-3-8-20)13-6-4-12(5-7-13)21-22-17-15(18)10-14(24(25)26)11-16(17)19/h4-7,10-11H,2-3,9H2,1H3/b22-21+

Molecular Formula	C17H15Cl2N5O2
Molar Mass	392.24
Density	1.35
Melting Point	144-146 °C
Boling Point	603.1±55.0 °C(Predicted)
Solubility	Soluble in water and ethanol.
Appearance	fuchsia powder
BRN	6348868
pKa	2.12±0.50(Predicted)
Storage Condition	2-8℃
MDL	MFCD00181820
Physical and Chemical Properties	Purplish red powder. Soluble in water and ethanol.

Hazard Symbols	Xi - Irritant
Risk Codes	43 - May cause sensitization by skin contact
Safety Description	36/37 - Wear suitable protective clothing and gloves.
WGK Germany	3

EPA chemical information	Information provided by: ofmpub.epa.gov (external link)
application	disperse yellow brown 2RCW is used for dyeing polyester fibers. its color matching performance is excellent. it is mixed with disperse purple CW (C.I.disperse violet 93) and disperse navy blue 5G (C.I.disperse Blue 291) to obtain disperse black EX-SF with excellent performance.
Production method	Using 4-nitro-2, 6-dichloroaniline and N-ethyl-N-cyanoethylaniline as raw materials, first 4-Nitro-2, 6-dichloroaniline is diazoitized, and then coupled with N-ethyl-N-cyanoethylaniline to obtain the product.. 98% sulfuric acid is added to the diazotized pot, the temperature is reduced to below 10 ℃, the dried and crushed sodium nitrite is slowly added, then the temperature is increased to 70 ℃, the temperature is kept for 30min, then the temperature is reduced to 0-10 ℃, 2, 6-dichloro-4-nitroaniline is slowly added, after the addition, the stirring reaction is continued for 4 hours to obtain diazo liquid. The feed ratio of each reactant: 2, 6-dichloro-4-nitroaniline: sulfuric acid: sodium nitrite = 1:1.5:1.03 (mass ratio). Add ice water of 3-4 times the mass of diazo liquid in the coupling pot, then slowly add the diazo liquid in a fine flow, maintain (0±2)℃, then add N-ethyl-N-cyanoethyl aniline in a fine flow, and continue to stir for more than 5 hours after addition until the diazo disappears to obtain the product.

Last Update：2024-04-09 20:02:46

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Product Name: Disperse Orange 37 Visit Supplier Webpage Request for quotation
CAS: 13301-61-6
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Email: 3008007409@qq.com
Mobile: 18021002903
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