137964-43-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137964-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,9,6 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137964-43:
(8*1)+(7*3)+(6*7)+(5*9)+(4*6)+(3*4)+(2*4)+(1*3)=163
163 % 10 = 3
So 137964-43-3 is a valid CAS Registry Number.
137964-43-3Relevant academic research and scientific papers
Total synthesis of herbimycin A
Nakata,Osumi,Ueno,Kimura,Tamai,Tatsuta
, p. 6015 - 6018 (2007/10/02)
The first total synthesis of herbimycin A (1), the benzoquinoid ansamycin antibiotic, has been accomplished by coupling two segments of the aliphatic ansa-chain 2 and the aromatic chromophore 3, elucidating the absolute stereochemistry.
