537-51-9 Usage
Usage
a. Precursor to polymers (aramid fibers, polyurethane)
b. Production of hair dyes, hair sprays, and other cosmetic products
Physical appearance
White to lightly colored solid
Solubility
Soluble in water and organic solvents
Health risks
a. Skin and eye irritation
b. Respiratory problems
c. Allergic reactions
Safety precautions
Handle and use with caution, following safety guidelines
Check Digit Verification of cas no
The CAS Registry Mumber 537-51-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,3 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 537-51:
(5*5)+(4*3)+(3*7)+(2*5)+(1*1)=69
69 % 10 = 9
So 537-51-9 is a valid CAS Registry Number.