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50625-52-0

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50625-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50625-52-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,6,2 and 5 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 50625-52:
(7*5)+(6*0)+(5*6)+(4*2)+(3*5)+(2*5)+(1*2)=100
100 % 10 = 0
So 50625-52-0 is a valid CAS Registry Number.

50625-52-0Relevant articles and documents

A [4 + 3] Annulation Reaction of aza- o-Quinone Methides with Arylcarbohydrazonoyl Chlorides for Synthesis of 2,3-Dihydro-1 H-benzo[ e][1,2,4]triazepines

Guo, Zhenyan,Jia, Hao,Liu, Honglei,Wang, Qijun,Huang, Jiaxing,Guo, Hongchao

supporting information, p. 2939 - 2943 (2018/05/28)

An unprecedented [4 + 3] annulation reaction of aza-ortho-quinone methides with arylcarbohydrazonoyl chlorides has been achieved under mild conditions. The annulation underwent a sequential conjugate addition/intramolecular annulation/rearrangement, providing a useful method for the synthesis of biologically interesting 2,3-dihydro-1H-benzo[e][1,2,4]triazepine.

Copper-catalyzed synthesis of substituted indazoles from 2-chloroarenes at low catalyst-loading

Tanimori, Shinji,Kobayashi, Yasuyuki,Iesaki, Yasukazu,Ozaki, Yuka,Kirihata, Mitsunori

experimental part, p. 1381 - 1387 (2012/04/04)

An efficient and convenient access to 1-substituted indazol-3-ones 2 has been achieved throughout the intramolecular C-N bond formations of 2-chloro-benzoic acid-N′-aryl and alkyl-hydrazides employing 0.5 mol% of cuprous (I) iodide and 20 mol% of l-prolin

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