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L-Leucine, N-[(4-methylphenyl)sulfonyl]-, hydrazide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21887-88-7

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21887-88-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21887-88-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,8 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21887-88:
(7*2)+(6*1)+(5*8)+(4*8)+(3*7)+(2*8)+(1*8)=137
137 % 10 = 7
So 21887-88-7 is a valid CAS Registry Number.

21887-88-7Relevant academic research and scientific papers

Diverse structural assemblies of U-shaped hydrazinyl-sulfonamides: experimental and theoretical analysis of non-covalent interactions stabilizing solid state conformations

Andleeb, Hina,Khan, Imtiaz,Franconetti, Antonio,Tahir, Muhammad Nawaz,Simpson, Jim,Hameed, Shahid,Frontera, Antonio

, p. 1780 - 1793 (2019/03/19)

The present study describes the synthesis of five new hydrazinyl-sulfonamide derivatives incorporating linear and branched alkyl chains. An efficient and straightforward synthetic approach was used to achieve these sulfonamide compounds in good yields. Th

Syntheses of novel chiral calix[4]crown: Lariat calix[4]-1,3-aza-crowns with chiral amino acid groups as branched chains

Yang, Fafu,Liu, Zhiqiang,Huang, Zhisheng,Guo, Hongyu,Hong, Biqiong

, p. 3485 - 3490 (2011/10/02)

The first examples of lariat calix[4]-1,3-aza-crowns with chiral amino acid groups as branched chains (5a and 5b) were designed and synthesized via a 1+1 addition reaction of calix[4]-1,3-substituted benzaldehyde derivative (4) and amino acid hydrazide derivatives (3a and 3b) in yields of 70% and 75%, respectively. The preliminary extraction experiments suggested that hosts 5a and 5b possessed good complexation abilities for-amino acids.

Synthesis of novel chiral calix[4]crown: Lariat calix[4]-1,3-aza-crown with chiral amino acid group as branched chain

Yang, Fafu,Hong, Biqiong,Guo, Hongyu,Huang, Zhisheng,Zhang, Xiaoyi

, p. 358 - 360 (2012/05/31)

The novel lariat calix[4]-1,3-aza-crowns with chiral amino acids groups as branched chain (5a) and (5b) were synthesized via "1+1" addition of calix[4]-1,3-substituted benzaldehyde derivative (4) and amino acids hydrazide derivatives (3a) and (3b) in yields of 70% and 75%, respectively.

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