71733-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71733-98-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,3 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71733-98:
(7*7)+(6*1)+(5*7)+(4*3)+(3*3)+(2*9)+(1*8)=137
137 % 10 = 7
So 71733-98-7 is a valid CAS Registry Number.
71733-98-7Relevant articles and documents
A Pyrolytic Route to the Phthalide-Isoquinolines
Elango, Varadaraj,Shamma, Maurice
, p. 4879 - 4881 (2007/10/02)
Pyrolysis of 8,13-dioxo-14-methoxycanadine (5) yields methyl keto ester 11 (35percent), aromatic phthalide-isoquinoline 12 (15percent), and (+)-chilenine (13, 7percent).Methyl keto ester 11 can be reduced quantitatively to 12 with sodium borhydride.Cataly