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202120-83-0

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202120-83-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202120-83-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,1,2 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 202120-83:
(8*2)+(7*0)+(6*2)+(5*1)+(4*2)+(3*0)+(2*8)+(1*3)=60
60 % 10 = 0
So 202120-83-0 is a valid CAS Registry Number.

202120-83-0Downstream Products

202120-83-0Relevant articles and documents

Photo-induced intermolecular radical β-addition to chiral α- (arylsulfinyl) enones

Mase, Nobuyuki

, p. 2957 - 2965 (2007/10/03)

The reactions of α-(arylsulfinyl) enones with alkyl radicals having a hydroxy or acetal group were examined under photo-irradiation in the presence of benzophenone. High diastereoselectivity was observed in the photo-induced radical reaction of 2-(arylsulfinyl)-2-cyclopentenones having a bulky aryl group, such as the 2,4,6-triisopropylphenyl or 2,4, 6-trimethylphenyl group. The photo-induced reaction of 3-[(2,4,6-triisopropylphenyl)sulfinyl]-3- pentene-2-one in 1,3-dioxolane also gave a single diastereomer of the 1,3- dioxolan-2-yl adduct.

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