265093-99-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 265093-99-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,5,0,9 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 265093-99:
(8*2)+(7*6)+(6*5)+(5*0)+(4*9)+(3*3)+(2*9)+(1*9)=160
160 % 10 = 0
So 265093-99-0 is a valid CAS Registry Number.
265093-99-0Relevant articles and documents
A new synthesis of 3-carboxy-2,5-disubstituted furans and their conversion to 5-vinyl derivatives
Marshall, James A.,Zou, Dong
, p. 1347 - 1350 (2000)
A new route to the title compounds is described. The key transformation involves treatment of a 2-(4-keto-2-alkynyl)-3-ketobutanoate with silica gel or Et3N to effect ring closure and subsequent double bond isomerization. (C) 2000 Elsevier Scie
