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16111-22-1

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16111-22-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16111-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,1 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16111-22:
(7*1)+(6*6)+(5*1)+(4*1)+(3*1)+(2*2)+(1*2)=61
61 % 10 = 1
So 16111-22-1 is a valid CAS Registry Number.

16111-22-1Relevant articles and documents

Amino acid catalyzed thio-Michael addition reactions

Kumar, Atul,Akanksha

, p. 11086 - 11092 (2007)

Using amino acid as a catalyst, an inexpensive, nontoxic, environmentally friendly, metal-free reaction procedure for C-S bond formation via thio-Michael addition reaction has been developed. The thio-Michael addition products were obtained in excellent yields under mild and neutral conditions. This metal-free catalytic protocol was found to be a good alternative to the existing metal catalyst methodology for the thio-Michael addition reaction.

Synthesis of Carboxylic Acid Derivatives of Dihydrochalcones

Levai, Albert

, p. 127 - 129 (2007/10/02)

Reaction of chalcones 1-8 with thioglycolic acid, 3-mercaptopropionic acid or thiosalicylic acid gives dihydrochalcone derivatives 9-23.

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