161199-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161199-69-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,9 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 161199-69:
(8*1)+(7*6)+(6*1)+(5*1)+(4*9)+(3*9)+(2*6)+(1*9)=145
145 % 10 = 5
So 161199-69-5 is a valid CAS Registry Number.
161199-69-5Relevant articles and documents
Formation of an 6α,14-epoxy-bridged isomorphinan, an unusual product from a substituted 6α,14-dihydroxymorphinan
Davis,Nelson,Nelson
, p. 1509 - 1511 (1994)
During alkylation of 3-O-benzyl-6α-naltrexol (1) with large aralkyl halides like 2-bromomethylnaphthalene and 9-chloromethylanthracene under phase transfer catalysis conditions (potassium hydroxide, tetrabutylammonium bromide, methylene chloride), formati
