25913-86-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 25913-86-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,9,1 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 25913-86:
(7*2)+(6*5)+(5*9)+(4*1)+(3*3)+(2*8)+(1*6)=124
124 % 10 = 4
So 25913-86-4 is a valid CAS Registry Number.
25913-86-4Relevant academic research and scientific papers
Synthesis of 2-Amino-Substituted 4,5-Dihydro-1,3-thiazoles
Richter, C.,Hobert, A.,Meisner, W.,Schulze, K.
, p. 407 - 412 (2007/10/02)
The reaction of 2-substituted 4-methallylthiosemicarbazides 1 with carbonyl compounds catalyzed by weak acids gives the thiosemicarbazones 2 and 1,2,4-triazolidine-3-thiones 3.By contrats under strong acidic conditions the reaction occurs by electrophilic