443339-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443339-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,3,3 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 443339-57:
(8*4)+(7*4)+(6*3)+(5*3)+(4*3)+(3*9)+(2*5)+(1*7)=149
149 % 10 = 9
So 443339-57-9 is a valid CAS Registry Number.
443339-57-9Relevant academic research and scientific papers
Preparation and reactions of 2-allyl-5-deoxymannose derivatives
Saleh, Twana,Rousseau, Gérard
, p. 2891 - 2897 (2007/10/03)
Reaction of Danishefsky diene with benzyloxyethanal led to a pyrone which was transformed in 4-6 steps to different 5-deoxymannose derivatives, useful intermediates for the synthesis of natural product such as hemibrevetoxin.
