31648-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31648-22-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,4 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31648-22:
(7*3)+(6*1)+(5*6)+(4*4)+(3*8)+(2*2)+(1*2)=103
103 % 10 = 3
So 31648-22-3 is a valid CAS Registry Number.
InChI:InChI=1/C14H21NO3/c1-14(2,13(16)18-4)12(15)9-10-5-7-11(17-3)8-6-10/h5-8,12H,9,15H2,1-4H3
31648-22-3Relevant academic research and scientific papers
A novel and facile preparation of bremazocine enantiomers through optically pure N-norbremazocines
Greiner, Elisabeth,Folk, John E.,Jacobson, Arthur E.,Rice, Kenner C.
, p. 233 - 238 (2007/10/03)
In order to provide ready access to multigram quantities of the optically pure bremazocines [(-)- and (+)-9,9-dimethyl-5-ethyl-2-hydroxy-2-(1-hydroxy- cyclopropylmethyl)-6,7-benzomorphan)], we have developed an improved non-chromatographic synthesis, and
