26816-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26816-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,8,1 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 26816-99:
(7*2)+(6*6)+(5*8)+(4*1)+(3*6)+(2*9)+(1*9)=139
139 % 10 = 9
So 26816-99-9 is a valid CAS Registry Number.
26816-99-9Relevant articles and documents
A facile synthesis of 1,2,4-oxadiazolidin-3-ones via tandem O, N-addition of hydroxyureas to methyl propiolate
Zong, Kyukwan,Shin, Seung Il,Kim, Hyoung Rae,Ryu, Eung K.
, p. 1217 - 1218 (2007/10/03)
1,2,4-Oxadiazolidin-3-ones were synthesized from tandem O, N-addition of hydroxyureas to methyl propiolate in good to excellent yields.