849428-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 849428-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,4,2 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 849428-91:
(8*8)+(7*4)+(6*9)+(5*4)+(4*2)+(3*8)+(2*9)+(1*1)=217
217 % 10 = 7
So 849428-91-7 is a valid CAS Registry Number.
849428-91-7Relevant academic research and scientific papers
A short synthesis of (-)-deoxoprosophylline
Jourdant, Angelique,Zhu, Jieping
, p. 249 - 259 (2007/10/03)
Syntheses of (-)-deoxoprosophylline from chiral L-N,N-dibenzylserine (TBDMS) aldehyde is reported. A highly diastereoselective nucleophilic addition of Buechi's Grignard reagent to chiral serinal followed by an intramolecular reductive amination of ω-oxo
