159169-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159169-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,1,6 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 159169-40:
(8*1)+(7*5)+(6*9)+(5*1)+(4*6)+(3*9)+(2*4)+(1*0)=161
161 % 10 = 1
So 159169-40-1 is a valid CAS Registry Number.
159169-40-1Relevant academic research and scientific papers
Preparation of optically active 2-(or 3)(p-tolylsulfinyl)-3(or 2)furyl- or thienylcarboxaldehydes
Girodier,Maignan,Rouessac
, p. 2045 - 2052 (2007/10/03)
The preparation of the four enantiomerically pure title compounds is described by reaction of (I)-(-)-Ss-menthyl-p-toluenesulfinate on furan or thiophene precursors.
