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7-Bromo-6-propyl-1,4-dioxa-spiro[4.5]dec-6-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81770-70-9

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81770-70-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81770-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,7 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81770-70:
(7*8)+(6*1)+(5*7)+(4*7)+(3*0)+(2*7)+(1*0)=139
139 % 10 = 9
So 81770-70-9 is a valid CAS Registry Number.

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