137380-55-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137380-55-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,3,8 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 137380-55:
(8*1)+(7*3)+(6*7)+(5*3)+(4*8)+(3*0)+(2*5)+(1*5)=133
133 % 10 = 3
So 137380-55-3 is a valid CAS Registry Number.
137380-55-3Relevant academic research and scientific papers
SYNTHESIS OF SUBSTITUTED CYCLOPENTANONES FROM 6-METHYLHEPT-5-EN-2-ONE
Zhuzbaev, B. T.,Veselovskii, V. V.,Moiseenkov, A. M.
, p. 1386 - 1391 (2007/10/02)
Readily available tert-butyl- and phenyl sulfoxide derivatives of methylheptenone were converted by the Pummerer method to the corresponding five-membered keto sulfides which are probable precursors of iridanes and related terpent cyclopentanoids.
