137788-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137788-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,8 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137788-19:
(8*1)+(7*3)+(6*7)+(5*7)+(4*8)+(3*8)+(2*1)+(1*9)=173
173 % 10 = 3
So 137788-19-3 is a valid CAS Registry Number.
137788-19-3Relevant 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.
