158955-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158955-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,9,5 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 158955-68:
(8*1)+(7*5)+(6*8)+(5*9)+(4*5)+(3*5)+(2*6)+(1*8)=191
191 % 10 = 1
So 158955-68-1 is a valid CAS Registry Number.
158955-68-1Relevant articles and documents
A New Convenient Route for the Synthesis of DOPA Peptides
Nakonieczna, Lucja,Przychodzen, Witold,Chimiak, Andrzej
, p. 1055 - 1058 (2007/10/02)
The tert-butyldimethylsilyl group as the catechol protective group of DOPA (compound 1a), Boc-DOPA (compound 1b) and DOPA esters (compounds 2a-c) is introduced.The compounds 2a-c and 1b are used as the starting substrates for the synthesis of the protecte
