9009-99-8 Usage
Uses
silk powder is recommended primarily for use in powder makeups to improve humectancy, oil absorption, and anti-cracking properties. However, a large amount of silk powder may be needed to obtain the desired results. Silk powder is a micronized powder of natural silk protein and is not compatible with all inorganic pigments used in color cosmetics. It is obtained from the secretion of the silkworm. Silk powder may cause allergic skin reactions.
Check Digit Verification of cas no
The CAS Registry Mumber 9009-99-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 9009-99:
(6*9)+(5*0)+(4*0)+(3*9)+(2*9)+(1*9)=108
108 % 10 = 8
So 9009-99-8 is a valid CAS Registry Number.