127045-34-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 127045-34-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,0,4 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 127045-34:
(8*1)+(7*2)+(6*7)+(5*0)+(4*4)+(3*5)+(2*3)+(1*4)=105
105 % 10 = 5
So 127045-34-5 is a valid CAS Registry Number.
127045-34-5Relevant articles and documents
Dimroth Rearrangement of 5-Hydrazino-1,2,3-thiadiazoles
L'abbe, Gerrit,Vanderstede, Els
, p. 1811 - 1814 (2007/10/02)
The reversible isomerization of 5-hydrazino-1,2,3-thiadiazoles and 1-amino-5-mercapto-1,2,3-triazoles has been established for an ester function at the 4-position (4a 5a).Thus, 4a was isolated by reacting 3a with two equivalents of hydrazine, whereas
