16588-67-3 Usage
General Description
The chemical 3-[ethyl[3-methyl-4-[[6-(methylsulphonyl)benzothiazol-2-yl]azo]phenyl]amino]propiononitrile, also known as C.I. Pigment Red 187, is a synthetic organic compound used as a red pigment in various industries including plastics, textiles, and paints. It is an azo dye, meaning it contains a specific functional group (N=N) that gives it its red color. The chemical structure consists of an ethyl group attached to an amino-propiononitrile backbone, with multiple aromatic ring systems and a methylsulphonyl group. It is known for its high stability, heat resistance, and lightfastness, making it a popular choice for a wide range of applications. However, like many azo dyes, its use is regulated due to concerns about its potential to release carcinogenic amines under certain conditions.
Check Digit Verification of cas no
The CAS Registry Mumber 16588-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,5,8 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 16588-67:
(7*1)+(6*6)+(5*5)+(4*8)+(3*8)+(2*6)+(1*7)=143
143 % 10 = 3
So 16588-67-3 is a valid CAS Registry Number.
InChI:InChI=1/C20H21N5O2S2/c1-4-25(11-5-10-21)15-6-8-17(14(2)12-15)23-24-20-22-18-9-7-16(29(3,26)27)13-19(18)28-20/h6-9,12-13H,4-5,11H2,1-3H3/b24-23+