139573-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139573-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,7 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139573-25:
(8*1)+(7*3)+(6*9)+(5*5)+(4*7)+(3*3)+(2*2)+(1*5)=154
154 % 10 = 4
So 139573-25-4 is a valid CAS Registry Number.
139573-25-4Relevant academic research and scientific papers
Stereocontrolled synthesis of (-)-allosamizoline using D-glucosamine as a chiral template
Takahashi, Shunya,Terayama, Hiroyuki,Kuzuhara, Hiroyoshi
, p. 5123 - 5126 (2007/10/02)
(-)-Allosamizoline (1), a core component of novel insect chitinase inhibitor, allosamidin (2), was stereoselectively synthesized from D-glucosamine (3), using an efficient ring contraction reaction as a key step.
