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We are involved in manufacturing, exporting and supplying of Acid Yellow 241 dyes, which are used for coloring the various fabrics like wool, nylon, silk and many more protein fibers. These products are developed at our high end manufacturing division using accurate chemical compositions and are known for their optimum performance.

Acid Yellow 241 Specification :

The Disperse Yellow 241 with the cas number 83249-52-9 is also called C.I.Disperse Yellow 241. The systematic name is 3-Pyridinecarbonitrile, 5-((3,4-dichlorophenyl)azo)-1,2-dihydro-6-hydroxy-1,4-dimethyl-2-oxo-. Its EINECS registry number is 280-322-8. The molecular formula is C14H10Cl2N4O2. The product category is Organics.  

The properties of the chemical are:
(1)ACD/LogP: 3.74;
(2)# of Rule of 5 Yellow Acid 241Violations: 0;
(3)ACD/LogD (pH 5.5): 0.3;
(4)ACD/LogD (pH 7.4): 0.24;
(5)#H bond acceptors: 6;
(6)#H bond donors: 1;
(7)#Freely Rotating Bonds: 3;
(8)Polar Surface Area: 89.05 Å2;
(9)Index of Refraction: 1.657;
(10)Molar Refractivity: 84.48 cm3;
(11)Molar Volume: 229.4 cm3;
(12)Polarizability: 33.49×10-24cm3;
(13)Surface Tension: 53.3 dyne/cm;
(14)Enthalpy of Vaporization: 70.9 kJ/mol;
(15)Vapour Pressure: 9.13×10-8 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C2C(/C#N)=C(/C)\C(\N=Nc1ccc(Cl)c(Cl)c1)=C(\O)N2C
(2)InChI: InChI=1/C14H10Cl2N4O2/c1-7-9(6-17)13(21)20(2)14(22)12(7)19-18-8-3-4-10(15)11(16)5-8/h3-5,22H,1-2H3

Properties and Applications:

dark red light yellow. Mainly used for wool, silk and polyamide fiber dyeing and printing.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 6-7 4-5 4-5 4-5 4-5 4-5 4-5 4-5


Name: Acid Yellow 241
C.I. No.:
Synonyms 3-Pyridinecarbonitrile,5-[(3,4-dichlorophenyl)azo]-1,2-dihydro-6-hydroxy-1,4-dimethyl-2-oxo- (9CI);C.I. 128450;C.I. Disperse Yellow 241;Disperse Yellow 241;Resolin Yellow 5GL;
Molecular Formula C17H11N2NaO3
Molecular Weight 314.27
InChI InChI=1/C14H10Cl2N4O2/c1-7-9(6-17)13(21)20(2)14(22)12(7)19-18-8-3-4-10(15)11(16)5-8/h3-5,22H,1-2H3
CAS Registry Number
EINECS 280-322-8
Molecular Structure Acid Yellow 241

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