130740-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130740-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,7,4 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 130740-41:
(8*1)+(7*3)+(6*0)+(5*7)+(4*4)+(3*0)+(2*4)+(1*1)=89
89 % 10 = 9
So 130740-41-9 is a valid CAS Registry Number.
130740-41-9Relevant academic research and scientific papers
Synthesis of antitumor ansamycins. 2. A formal synthesis of (±)-macbecin I
Coutts,Kallmerten
, p. 4305 - 4308 (2007/10/02)
Convergent synthesis of (±)-2, a key intermediate in the Merck synthesis of macbecin I (1), incorporates the chelation-mediated coupling of a lithiated aryl subunit and the γ-hydroxy aldehyde equivalent 8 to establish a critical connective element of the
