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857560-83-9

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857560-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857560-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,6 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 857560-83:
(8*8)+(7*5)+(6*7)+(5*5)+(4*6)+(3*0)+(2*8)+(1*3)=209
209 % 10 = 9
So 857560-83-9 is a valid CAS Registry Number.

857560-83-9Downstream Products

857560-83-9Relevant articles and documents

Synthesis of 2-Benzylphenyl Ketones by Aryne Insertion into Unactivated C-C Bonds

Rao, Bin,Tang, Jinghua,Zeng, Xiaoming

supporting information, p. 1678 - 1681 (2016/04/26)

A transition-metal-free procedure to access to functionalized 2-benzylphenyl ketones is described by direct insertion of arynes into benzylic C-C bonds. This reaction was promoted by cesium fluoride at room temperature, allowing the products to form in high selectivity and achieve good functional group tolerance.

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