7239-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7239-20-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,3 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 7239-20:
(6*7)+(5*2)+(4*3)+(3*9)+(2*2)+(1*0)=95
95 % 10 = 5
So 7239-20-5 is a valid CAS Registry Number.
InChI:InChI=1/2C6H14O2PS2.Pt/c2*1-5(2)7-9(10,11)8-6(3)4;/h2*5-6H,1-4H3;/q;;+4
7239-20-5Relevant articles and documents
Nucleophilicity Parameters of Arylsulfonyl-Substituted Halomethyl Anions
Li, Zhen,Chen, Quan,Mayer, Peter,Mayr, Herbert
, p. 2011 - 2017 (2017/02/26)
The rates of the reactions of the arylsulfonyl-substituted carbanions carrying α-chloro and α-bromo substituents (1a-e) with quinone methides 2a-g and benzylidenemalonates 2h and 2i in DMSO were determined photometrically at 20 °C. The reactions were perf
