109057-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109057-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,5 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109057-77:
(8*1)+(7*0)+(6*9)+(5*0)+(4*5)+(3*7)+(2*7)+(1*7)=124
124 % 10 = 4
So 109057-77-4 is a valid CAS Registry Number.
109057-77-4Relevant articles and documents
A Practical Preparations of Conjugated Nitroalkenes
Jew, Sang-sup,Kim, Hee-doo,Cho, Youn-sang,Cook, Chae-ho
, p. 1747 - 1748 (1986)
Treatment of alkenes (1a-5a) with sodium nitrite and iodine in ethyl acetate (or ether) and water in the presence of ethylene glycol (or propylene glycol) provides conjugated nitroalkenes (1b-5b) in 49-82percent yields.
