191231-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191231-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,2,3 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191231-78:
(8*1)+(7*9)+(6*1)+(5*2)+(4*3)+(3*1)+(2*7)+(1*8)=124
124 % 10 = 4
So 191231-78-4 is a valid CAS Registry Number.
191231-78-4Relevant articles and documents
Synthesis of expanded graphdiyne substructures
Wan, W. Brad,Brand, Stephen C.,Pak, Joshua J.,Haley, Michael M.
, p. 2044 - 2052 (2007/10/03)
Graphdiyne (1) is a member of a novel family of interesting and potentially important allotropes of carbon. Reported herein are the synthesis and spectroscopic characterization of model substructures 2-6. The macrocycles were prepared by the intramolecula
