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81725-15-7

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81725-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81725-15-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,2 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81725-15:
(7*8)+(6*1)+(5*7)+(4*2)+(3*5)+(2*1)+(1*5)=127
127 % 10 = 7
So 81725-15-7 is a valid CAS Registry Number.

81725-15-7Upstream product

81725-15-7Downstream Products

81725-15-7Relevant academic research and scientific papers

Directed Ortho Lithiation of Isophthalonitrile. New Methodology for the Synthesis of 1,2,3-Trisubstituted Benzenes

Krizan, Timothy D.,Martin, J. C.

, p. 2681 - 2682 (1982)

The lithiation of 1,3-dicyanobenzene with lithium diisopropylamide occurs in high yield, regiospecifically at the 2-position, to give aryllithium species stable at temperatures below -90 deg C.

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