142743-11-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142743-11-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,4 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142743-11:
(8*1)+(7*4)+(6*2)+(5*7)+(4*4)+(3*3)+(2*1)+(1*1)=111
111 % 10 = 1
So 142743-11-1 is a valid CAS Registry Number.
142743-11-1Relevant articles and documents
Modulation Of ?-Facial Selectivities In Nucleophilic Additions to 7-Norbornenones
Mehta, Goverdhan,Khan, Faiz Ahmed
, p. 3065 - 3068 (1992)
The pronounced syn-face selectivity exhibited by 7-norbornenone in hydride reduction is dramatically altered (reversed) by the remote electron withdrawing substituents at the C2,C3-endo-position.Key Words: 7-Norbornenone, NaBH4 reduction, ?-face-selectivity.
