131049-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131049-54-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,4 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 131049-54:
(8*1)+(7*3)+(6*1)+(5*0)+(4*4)+(3*9)+(2*5)+(1*4)=92
92 % 10 = 2
So 131049-54-2 is a valid CAS Registry Number.
131049-54-2Relevant articles and documents
Generation of ortho-Potassiofluorobenzene and its Functionalization
Fossatelli, M.,Verkruijsse, H.D.,Brandsma, L.
, p. 1701 - 1704 (2007/10/02)
A number of ortho-substituted fluorobenzenes are readily accessible by treating fluorobenzene at -100 deg C with 1:1 molar mixture of potassium tert-butoxide and n-butyllithium in tetrahydrofuran and hexane, and subsequently adding an electrophilic reagent.