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1556864-93-7

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1556864-93-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1556864-93-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,5,6,8,6 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1556864-93:
(9*1)+(8*5)+(7*5)+(6*6)+(5*8)+(4*6)+(3*4)+(2*9)+(1*3)=217
217 % 10 = 7
So 1556864-93-7 is a valid CAS Registry Number.

1556864-93-7Downstream Products

1556864-93-7Relevant articles and documents

Synthesis of substituted naphthalenes from α-substituted ketones and 1,2-bis(halomethyl)benzenes including a rearrangement aromatization of benzo[c]oxepine

Wang, Jungang,Xiang, Jiachen,Wang, Miao,Guan, Jie,Wu, Anxin

supporting information, p. 1412 - 1417 (2014/02/14)

An efficient and practical method for the synthesis of cyano, sulfonyl and phosphoryl substituted naphthalene derivatives via the rearrangement aromatization of benzo[c]oxepine has been developed. The system holds the advantages of metal catalysts free, and mild reaction conditions.

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