18976-74-4 Usage
Description
Reactive Yellow 14 is an organic sodium salt that is the disodium salt of an azo-substituted pyrazolinone sulfonic acid compound. It is characterized by its brilliant yellow color and appears as a yellow powder. The dye exhibits colorfastness to light, oxygen bleaching, and perspiration, with a rating of 4-5 on the ISO scale. It also has good soaping and stain fading properties.
Uses
Used in Textile Industry:
Reactive Yellow 14 is used as a dye for cotton, rayon, silk, polyvinyl alcohol, wool, and nylon. It is suitable for various dyeing processes, including dip dyeing, pad dyeing, and direct dyeing. The dye is also used in anti-pollution and discharge printing applications, making it an eco-friendly option for the textile industry.
Preparation
2-(3-Amino-4-methoxyphenylsulfonyl)ethyl hydrogen sulfate diazo, and 3-Chloro-4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)-5-methylbenzenesulfonic acid?coupling.
Standard
Light Fastness
Fading
Stain
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 18976-74-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,7 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 18976-74:
(7*1)+(6*8)+(5*9)+(4*7)+(3*6)+(2*7)+(1*4)=164
164 % 10 = 4
So 18976-74-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H21ClN4O11S3.2Na/c1-11-8-14(38(29,30)31)9-15(21)19(11)25-20(26)18(12(2)24-25)23-22-16-10-13(4-5-17(16)35-3)37(27,28)7-6-36-39(32,33)34;;/h4-5,8-10,18H,6-7H2,1-3H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2/b23-22+;;