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108534-50-5

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108534-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108534-50-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,5,3 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 108534-50:
(8*1)+(7*0)+(6*8)+(5*5)+(4*3)+(3*4)+(2*5)+(1*0)=115
115 % 10 = 5
So 108534-50-5 is a valid CAS Registry Number.

108534-50-5Relevant articles and documents

Diastereoselective synthesis of α-tocopherol: A new concept for the formation of chromanols

Chapelat, Julien,Buss, Axel,Chougnet, Antoinette,Woggon, Wolf-D.

supporting information; experimental part, p. 5123 - 5126 (2009/05/30)

(Chemical Equation Presented) A diastereoselective synthesis of α-tocopherol 1 (93% de) was achieved via two key steps, (i) a highly diastereoselective Shi epoxidation of a trisubstituted alkene and (ii) an acid supported, "anti-Baldwin" epoxide ring opening under inversion of configuration leading to the 6-membered chromanol ring.

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