159878-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159878-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,8,7 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 159878-80:
(8*1)+(7*5)+(6*9)+(5*8)+(4*7)+(3*8)+(2*8)+(1*0)=205
205 % 10 = 5
So 159878-80-5 is a valid CAS Registry Number.
159878-80-5Relevant articles and documents
New routes to 1,4-benzodiazepin-2,5-diones
Akssira,Boumzebra,Kasmi,Dahdouh,Roumestant,Viallefont
, p. 9051 - 9060 (1994)
1,4-benzodiazepin-2,5-diones have been synthesized in good overall yields by two routes, the first one by cyclisation of dipeptides prepared from Boc anthranilic acid and α-amino acid methyl esters, the second one by reaction of N-carboxy α-amino acid anhydrides with Boc anthranilic acid.