131172-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131172-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,7 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131172-51:
(8*1)+(7*3)+(6*1)+(5*1)+(4*7)+(3*2)+(2*5)+(1*1)=85
85 % 10 = 5
So 131172-51-5 is a valid CAS Registry Number.
131172-51-5Relevant articles and documents
REARRANGEMENT OF 1-ACETYLINDOXYL OXINE TO 1-ACETYL-2-CHLORO-3-IMINOINDOLINE HYDROCHLORIDE
Velezheva, V. S.,Ryabova, S. Yu.
, p. 520 - 524 (2007/10/02)
Rearrangement of 1-acetylindoxyl oxime upon treatment with hydrogen chloride in acetic acid results in the formation of 1-acetyl-2-chloro-3-iminoindoline hydrochloride.Hydrolysis and acylation of the latter have been studied, along with reaction of 1-acet
