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120103-74-4

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120103-74-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120103-74-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,1,0 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 120103-74:
(8*1)+(7*2)+(6*0)+(5*1)+(4*0)+(3*3)+(2*7)+(1*4)=54
54 % 10 = 4
So 120103-74-4 is a valid CAS Registry Number.

120103-74-4Relevant articles and documents

Intramolecular addition of a hydroxyl to a N-acyliminium system. Application to the synthesis of isoindolo[2,1-a] [3,1]benzoxazine and isoindolo[1,2-c][2,4] benzoxazepine derivatives

Pigeon, Pascal,Sikoraiova, Jana,Marchalin, Stefan,Decroix, Bernard

, p. 129 - 138 (2007/10/03)

The titled compounds were prepared by the reaction of hydroxylated lactam (3a-c) or (10) with p-toluenesulfonic acid in dichloromethane. The ratio of diastereomeric mixtures (4b/5b (2/1) or 4c/5c (2/1) or 11/12 (5/1)) is discussed.

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