89898-34-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89898-34-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,9 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89898-34:
(7*8)+(6*9)+(5*8)+(4*9)+(3*8)+(2*3)+(1*4)=220
220 % 10 = 0
So 89898-34-0 is a valid CAS Registry Number.
InChI:InChI=1/C7H10O3/c1-3-5-6(8)7(9)10-4-2/h1,6,8H,4-5H2,2H3
89898-34-0Relevant articles and documents
Total synthesis of heliophenanthrone
Dyker, Gerald,Hildebrandt, Dirk
, p. 6093 - 6096 (2007/10/03)
The total synthesis of rac-heliophenanthrone (3a) was achieved by a convergent approach, making use of a transition-metal-catalyzed domino process with an intramolecular Diels-Alder reaction at an isobenzopyrylium cation as key step.