15898-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15898-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,9 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 15898-40:
(7*1)+(6*5)+(5*8)+(4*9)+(3*8)+(2*4)+(1*0)=145
145 % 10 = 5
So 15898-40-5 is a valid CAS Registry Number.
15898-40-5Relevant articles and documents
Copper-catalysed coupling of aryl tosylates with sodium arylsulfinates
Wang, Chunjie,Zhang, Hui,Li, Zhiwei,Wang, Ziyun
, p. 639 - 642 (2014)
Diaryl sulfones derivatives were easily synthesised from aryl tosylates and sodium arylsulfinates in high yields using [Cu(CH3CN)4]PF6 as catalyst. The transformation is efficient, simple and the starting materials are readily available.
