183325-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183325-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,3,2 and 5 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 183325-41:
(8*1)+(7*8)+(6*3)+(5*3)+(4*2)+(3*5)+(2*4)+(1*1)=129
129 % 10 = 9
So 183325-41-9 is a valid CAS Registry Number.
183325-41-9Relevant academic research and scientific papers
A novel synthesis of 4H-1,4-benzoxazines
Kudo, Noriaki,Furuta, Satoru,Sato, Kazuo
, p. 1663 - 1668 (2007/10/03)
The reaction of methyl 2-chloro-5-ethoxycarbonylamino-4-fluorobenzoate (4a) and 1-bromo-3,3-dimethyl-2-butanone (2) in the presence of 2.2 eq of lithium bis(trimethylsilyl)amide afforded the 4H-1,4-benzoxazine (6a) in good yield instead of the expected 4-
