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139109-56-1

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139109-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139109-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,0 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139109-56:
(8*1)+(7*3)+(6*9)+(5*1)+(4*0)+(3*9)+(2*5)+(1*6)=131
131 % 10 = 1
So 139109-56-1 is a valid CAS Registry Number.

139109-56-1Relevant articles and documents

Syntheses of 5,3',4',5'-tetramethoxy-6,7-methylenedioxyisoflavone and 5,3',4'-trimethoxy-6,7-methylenedioxyisoflavone isolated from Iris germanica rhizomes

Shaw,Srivastava,Jha

, p. 144 - 147 (2007/10/02)

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