55994-13-3 Usage
General Description
3-[(4-Amino-3-methylphenyl)azo]benzenesulfonic acid is a chemical compound that is often used in the manufacturing of various dyes and pigments. It belongs to the class of azo compounds, which are characterized by a nitrogen-nitrogen double bond. This particular compound contains a sulfonic acid group, which makes it water-soluble and useful for dyeing processes. It has a yellow to orange color and is commonly used as a colorant in the textile industry. Additionally, it is known for its potential as a sensitizing agent in photochemistry and photoimaging processes. Overall, 3-[(4-Amino-3-methylphenyl)azo]benzenesulfonic acid is a versatile chemical with applications in dyes, pigments, and photochemistry.
Check Digit Verification of cas no
The CAS Registry Mumber 55994-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,9,9 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55994-13:
(7*5)+(6*5)+(5*9)+(4*9)+(3*4)+(2*1)+(1*3)=163
163 % 10 = 3
So 55994-13-3 is a valid CAS Registry Number.
InChI:InChI=1/C13H13N3O3S/c1-9-7-11(5-6-13(9)14)16-15-10-3-2-4-12(8-10)20(17,18)19/h2-8H,14H2,1H3,(H,17,18,19)/b16-15+
55994-13-3Relevant articles and documents
Chromium complex compound
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, (2008/06/13)
A chromium complex compound represented as the free acid form by the formula (I): STR1 wherein X1 represents a hydrogen atom, a methyl group, a methoxy group or a sulfonic acid group; X2, X3 and X4 represent independently a hydrogen atom, a chlorine atom, a methyl gorup, a methoxy group, a carboxyl group or a sulfonic acid group; Y represents a hydrogen atom or a sulfonic acid group; Z represents a chlorine atom, a fluorine atom or --N30 (R)3 (R represents a C1 to C4 -alkyl group), STR2 and M represents a hydrogen atom or an alkali metal, a process for producing the chromium complex compound (I) and a method for dyeing cellulosic fibers with the same. The chromium complex compound represented by formula (I) is excellent in affinity to cellulosic fibers and in color-yield, build-up properties and fastness properties. These compounds are dyes for cellulosic fibers.
