189458-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189458-44-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,4,5 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 189458-44:
(8*1)+(7*8)+(6*9)+(5*4)+(4*5)+(3*8)+(2*4)+(1*4)=194
194 % 10 = 4
So 189458-44-4 is a valid CAS Registry Number.
189458-44-4Relevant academic research and scientific papers
An efficient straightforward synthesis of (-)-bulgecinine
Panday, Sharad K.,Langlois, Nicole
, p. 1373 - 1384 (2007/10/03)
(-)-Bulgecinine 1, a component of the antibiotic bulgecins, was efficiently synthesized from (S)-pyroglutaminol 2.
