138381-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138381-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,8 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138381-23:
(8*1)+(7*3)+(6*8)+(5*3)+(4*8)+(3*1)+(2*2)+(1*3)=134
134 % 10 = 4
So 138381-23-4 is a valid CAS Registry Number.
138381-23-4Relevant academic research and scientific papers
Preparation of Optically Active Sulfoxides Bearing Heterocycles and Stereoselective Methylation Using Their α-Sulfinyl Carbanions
Sagae, Takahiro,Ogawa, Satoshi,Furukawa, Naomichi
, p. 3179 - 3181 (2007/10/02)
Optically active sulfoxides bearing heterocycles i.e., (1-methyl-2-imidazolyl)methyl and 2-thienylmethyl groups were prepared and their stereoselective methylations were conducted.
