(10E,13Z)-(4S,7R,8S,9S,16S)-16-acetyl-4,8-bis-(tert-butyl-dimethyl-silanyloxy)-5,5,7,9,13-pentamethyl-oxacyclohexadeca-10,13-diene-2,6-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 905288-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,5,2,8 and 8 respectively; the second part has 2 digits, 2 and 0 respectively. Calculate Digit Verification of CAS Registry Number 905288-20: (8*9)+(7*0)+(6*5)+(5*2)+(4*8)+(3*8)+(2*2)+(1*0)=172 172 % 10 = 2 So 905288-20-2 is a valid CAS Registry Number.
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