104688-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104688-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,6,8 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 104688-89:
(8*1)+(7*0)+(6*4)+(5*6)+(4*8)+(3*8)+(2*8)+(1*9)=143
143 % 10 = 3
So 104688-89-3 is a valid CAS Registry Number.
104688-89-3Relevant academic research and scientific papers
1,3,4-Thiadiazoles by Reaction of Dithiocarboxylic Esters with Carbonic Hydrazides
Thiel, W.,Mayer, R.
, p. 55 - 64 (2007/10/02)
1,1-Dithiooxalic esters 1 and heteroaryl dithiocarboxylic esters 2 react with carbonic hydrazides yielding 1,3,4-thiadiazoles.The 1-thiooxamoyl semicarbazides 3 or 1-heteroylthiocarbonyl semicarbazides 4, primarily formed by thioacylation of semicarbazide
