243139-05-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 243139-05-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,3,1,3 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 243139-05:
(8*2)+(7*4)+(6*3)+(5*1)+(4*3)+(3*9)+(2*0)+(1*5)=111
111 % 10 = 1
So 243139-05-1 is a valid CAS Registry Number.
243139-05-1Relevant articles and documents
1-butyl-3-methylimidazol-2-ylidene as an efficient catalyst for cross-coupling between aromatic aldehydes and N-aroylbenzotriazoles
Phungpis, Baramee,Hahnvajanawong, Viwat
, p. 651 - 657 (2021/02/27)
Cross-coupling of aromatic aldehydes with N-aroylbenzotriazoles in [Bmim]Br in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) provided an efficient procedure for the synthesis of 1,2-diarylethane-1,2-diones.
