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175979-81-4

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175979-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 175979-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,9,7 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 175979-81:
(8*1)+(7*7)+(6*5)+(5*9)+(4*7)+(3*9)+(2*8)+(1*1)=204
204 % 10 = 4
So 175979-81-4 is a valid CAS Registry Number.

175979-81-4Downstream Products

175979-81-4Relevant articles and documents

Enantioselective alkylation of lactams and lactones via lithium enolate formation using a chiral tetradentate lithium amide in the presence of lithium bromide

Matsuo, Jun-Ichi,Kobayashi, Shu,Koga, Kenji

, p. 9723 - 9726 (2007/10/03)

Enantioselective alkylation of lactams and lactones can be realized up to 98% ee by deprotonation with a chiral tetradentate lithium amide (4b) in the presence of lithium bromide, and subsequent alkylation with active alkylating agents in non-chelating solvents.

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