4444-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4444-85-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,4 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4444-85:
(6*4)+(5*4)+(4*4)+(3*4)+(2*8)+(1*5)=93
93 % 10 = 3
So 4444-85-3 is a valid CAS Registry Number.
4444-85-3Relevant articles and documents
Cyanuric chloride, a useful reagent for macrocyclic lactonization
Venkataraman,Wagle
, p. 1893 - 1896 (2007/10/02)
Six ω-hydroxy acids have been converted to macrocyclic lactones by treatment with cyanuric chloride and triethylamine in acetone at room temperature. The mechanism apparently involves activation of both the carboxyl and hydroxyl groups.