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221198-34-1

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221198-34-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221198-34-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,1,9 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 221198-34:
(8*2)+(7*2)+(6*1)+(5*1)+(4*9)+(3*8)+(2*3)+(1*4)=111
111 % 10 = 1
So 221198-34-1 is a valid CAS Registry Number.

221198-34-1Relevant articles and documents

Structure-activity relationship (SAR) studies on oxazolidinone antibacterial agents. 2.1) Relationship between lipophilicity and antibacterial activity in 5-thiocarbonyl oxazolidinones

Tokuyama,Takahashi,Tomita,Tsubouchi,Yoshida,Iwasaki,Kado,Okezaki,Nagata

, p. 353 - 360 (2007/10/03)

5-Thiourea and 5-dithiocarbamate oxazolidinones were synthesized as a continuation of research on 5-thiocarbonyl oxazolidinone antibacterial agents considering the hydrophobic parameters of the molecule. The structure-activity relationship (SAR) study revealed that the antibacterial activity on 5-thiocarbonyl oxazolidinones was significantly affected by the lipophilicity, especially the calculated log P value and the balance between 5-hydrophilic (or hydrophobic) substituent and hydrophobic (or hydrophilic) substituents on the benzene ring. Some of 5-thiocarbonyl oxazolidinones were found to have good in vitro antibacterial activity against gram-positive bacteria including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE).

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