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111021-09-1

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111021-09-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111021-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,0,2 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 111021-09:
(8*1)+(7*1)+(6*1)+(5*0)+(4*2)+(3*1)+(2*0)+(1*9)=41
41 % 10 = 1
So 111021-09-1 is a valid CAS Registry Number.

111021-09-1Downstream Products

111021-09-1Relevant articles and documents

A metal-free oxidative esterification of the benzyl C-H bond

Feng, Jie,Liang, Shuai,Chen, Shan-Yong,Zhang, Ji,Fu, Song-Sen,Yu, Xiao-Qi

experimental part, p. 1287 - 1292 (2012/06/15)

An efficient metal-free oxidative esterification of benzyl C-H bonds was developed. Using tetrabutylammonium iodide as catalyst and tert-butyl hydroperoxide as co-oxidant, benzylic substrates could react smoothly with various carboxylic acids to give the esters with good to excellent yields. The method was also suitable for the O-protection of N-Boc amino acids. The reaction mechanism was primarily investigated and a radical process was proposed. Copyright

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