7089-43-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7089-43-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,0,8 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7089-43:
(6*7)+(5*0)+(4*8)+(3*9)+(2*4)+(1*3)=112
112 % 10 = 2
So 7089-43-2 is a valid CAS Registry Number.
7089-43-2Relevant articles and documents
NEW SYNTHETIC METHOD OF (Z)-4-ALKENOIC ACIDS USING RING-OPENING REACTION OF (Z)-4-HEXENOLIDE WITH ORGANOCOPPER REAGENT
Fujisawa, Tamotsu,Umezu, Kazuto,Kawashima, Masatoshi
, p. 1795 - 1798 (2007/10/02)
(Z)-4-Hexenolide reacted regioselectively with diorganocuprates to give (Z)-4-alkenoic acids in high yields.Synthetic utility was demonstrated by the convenient synthesis of cis-jasmone.