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42123-88-6

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42123-88-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42123-88-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,2 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 42123-88:
(7*4)+(6*2)+(5*1)+(4*2)+(3*3)+(2*8)+(1*8)=86
86 % 10 = 6
So 42123-88-6 is a valid CAS Registry Number.

42123-88-6Downstream Products

42123-88-6Relevant articles and documents

Domino aryne precursor: Efficient construction of 2,4-disubstituted benzothiazoles

Shi, Jiarong,Qiu, Dachuan,Wang, Juan,Xu, Hai,Li, Yang

supporting information, p. 5670 - 5673 (2015/05/20)

An aryne precursor with a potential to perform domino aryne chemistry was proposed and synthesized. The reaction of this reagent with benzothioamide derivatives could afford 2,4-disubstituted benzothiazole with sequential incorporation of C-S, C-N, and C-C bonds on the consecutive three positions of the aryne precursor.

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