155164-68-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155164-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,1,6 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155164-68:
(8*1)+(7*5)+(6*5)+(5*1)+(4*6)+(3*4)+(2*6)+(1*8)=134
134 % 10 = 4
So 155164-68-4 is a valid CAS Registry Number.
InChI:InChI=1/C12H8Cl2N2O3/c1-19-8-4-2-7(3-5-8)11(17)16-12(18)10(14)9(13)6-15-16/h2-6H,1H3
155164-68-4Relevant articles and documents
2-Acylpyridazin-3-ones: Novel mild and chemoselective acylating agents for amines
Kang, Young-Jin,Chung, Hyun-A,Kim, Jeum-Jong,Yoon, Yong-Jin
, p. 733 - 738 (2007/10/03)
2-Acyl-4,5-dichloropyridazin-3-ones served as excellent novel N-acylating reagents for amines under neutral conditions in organic solvent. They are convenient, chemoselective and easy to handle stable N-acylating reagents of amines.