59999-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 59999-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,9,9 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 59999-21:
(7*5)+(6*9)+(5*9)+(4*9)+(3*9)+(2*2)+(1*1)=202
202 % 10 = 2
So 59999-21-2 is a valid CAS Registry Number.
59999-21-2Relevant articles and documents
Synthesis of new thioxanthenes by organocatalytic intramolecular Friedel–Crafts reaction
Yildiz, Tülay
, p. 2177 - 2188 (2018/07/21)
An efficient organocatalytic route has been developed to synthesize novel substituted thioxanthenes (2a–2v) starting from diaryl thioether alcohols (1a–1v) using the intramolecular Friedel–Crafts reaction. The starting materials were obtained in two stage
