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(1R,4S,6R,9S,12R)-12-(tert-Butyl-dimethyl-silanyloxy)-4-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-5-oxa-tricyclo[8.3.0.04,6]tridec-10-ene-2,7-diyne-1,9-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

439857-69-9

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439857-69-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 439857-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,9,8,5 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 439857-69:
(8*4)+(7*3)+(6*9)+(5*8)+(4*5)+(3*7)+(2*6)+(1*9)=209
209 % 10 = 9
So 439857-69-9 is a valid CAS Registry Number.

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