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20672-34-8

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20672-34-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20672-34-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,7 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20672-34:
(7*2)+(6*0)+(5*6)+(4*7)+(3*2)+(2*3)+(1*4)=88
88 % 10 = 8
So 20672-34-8 is a valid CAS Registry Number.

20672-34-8Relevant articles and documents

Synthesis of 4-(N,N-dialkylamino)benzyltriphenylphosphonium iodides from hydroxymethyltriphenylphosphonium iodide and N,N-dialkylaniline

Davis, Matthew C.,Parrish, Damon A.

experimental part, p. 3909 - 3918 (2009/04/11)

Reinvestigation of the one-pot synthesis of 4-(N,N-dialkylamino) benzyltriphenylphosphonium iodides has shown that the product forms after the initial condensation of triphenylphosphine upon formaldehyde. Copyright Taylor & Francis Group, LLC.

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