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1133768-70-3

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1133768-70-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1133768-70-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,3,7,6 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1133768-70:
(9*1)+(8*1)+(7*3)+(6*3)+(5*7)+(4*6)+(3*8)+(2*7)+(1*0)=153
153 % 10 = 3
So 1133768-70-3 is a valid CAS Registry Number.

1133768-70-3Relevant articles and documents

Sulfur ylides 15. Intramolecular cyclization of new keto-stabilized sulfur bis-ylide

Galin,Sakhautdinov,Khalikov,Lakeev,Maidanova,Fatykhov

, p. 2479 - 2481 (2008/12/23)

New sulfur bis-ylide was obtained from 3-amino-3-phenylpropionic acid and pyromellitic dianhydride. Its intramolecular cyclization proceeds regioselectively, leading to 3,4,11,12-tetrahydro-2H,6H-indolizino[2,1-f] pyrido[2,1-a]isoindole derivative in 66% yield. Phosphorus bis-ylide of similar structure gives a cyclization product in 10% yield.

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