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138809-46-8

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138809-46-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138809-46-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,0 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 138809-46:
(8*1)+(7*3)+(6*8)+(5*8)+(4*0)+(3*9)+(2*4)+(1*6)=158
158 % 10 = 8
So 138809-46-8 is a valid CAS Registry Number.

138809-46-8Downstream Products

138809-46-8Relevant articles and documents

Electronic effects on π-facial stereoselectivity in electrophilic additions to allylic bonds: Stereoselective epoxidation of allylic fluorides

Fujita, Makoto,Ishizuka, Hidemi,Ogura, Katsuyuki

, p. 6355 - 6358 (1991)

The electronic stabilization of the transition state in electrophilic additions to allylic bonds is discussed through m-CPBA oxidation of allylic fluorides; the stereoselectivity is interpreted by a transition-state model where the most electronegative atom (fluorine) is oriented at the inside position as supported by theoretical examinations.

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