133305-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133305-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,3,0 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 133305-99:
(8*1)+(7*3)+(6*3)+(5*3)+(4*0)+(3*5)+(2*9)+(1*9)=104
104 % 10 = 4
So 133305-99-4 is a valid CAS Registry Number.
133305-99-4Relevant articles and documents
New bronchodilators. II. 3H-imidazo[4,5-c]quinolin-4(5H)-ones
Suzuki,Kuroda,Hayashi,Nakasato,Manabe,Ohmori,Kitamura
, p. 3245 - 3252 (2007/10/02)
A series of novel 3-substituted imidazo[4,5-c]quinolin-4(5H)-ones (2a-w) was prepared by the reaction of imidazo[4,5-c]quinolin-4(5H)-ones (6) with several electrophiles under basic conditions. The bronchodilatory activity of these compounds was evaluated