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(3R,4aR)-3-Methyl-4,4a,5,6-tetrahydro-3H-pyrido[1,2-c][1,3]oxazin-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137128-40-6

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137128-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137128-40-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,1,2 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 137128-40:
(8*1)+(7*3)+(6*7)+(5*1)+(4*2)+(3*8)+(2*4)+(1*0)=116
116 % 10 = 6
So 137128-40-6 is a valid CAS Registry Number.

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