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72331-54-5

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72331-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72331-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,3 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72331-54:
(7*7)+(6*2)+(5*3)+(4*3)+(3*1)+(2*5)+(1*4)=105
105 % 10 = 5
So 72331-54-5 is a valid CAS Registry Number.

72331-54-5Relevant articles and documents

α-Ketocarboxylic acid-based inhibitors of protein tyrosine phosphatases

Chen, Yen Ting,Onaran,Doss, Christopher J.,Seto, Christopher T.

, p. 1935 - 1938 (2007/10/03)

A series of aryl α-ketocarboxylic acids was synthesized and investigated as inhibitors for the protein tyrosine phosphatase from Yersinia enterocolitica. IC50 values for these compounds range from 79 to 2700 μM. Larger aromatic groups, and aromatic groups with high electron density, lead to more potent inhibitors. In general, the related aryl α-hydroxycarboxylic acids show lower activity.

REACTION OF FLUORINATED ARYLMAGNESIUM HALIDES WITH DI-TERT-BUTYL OXALATE

Shadrina, L. P.,Kazakov, A. F.,Dormidontov, Yu. P.,Pirogova, V. V.

, p. 2257 - 2259 (2007/10/02)

The reaction of phenylmagnesium halides fluorinated in the ring or in the side chain with di-tert-butyl oxalate was investigated.It was shown that the esters of arylglyoxalic or arylglycolic acids are formed under various temperature conditions, depending on the electrophilicity of the radical in the organomagnesium compound.

Nuclear Magnetic Resonance Configuration Correlation of Primary Amine Derivatives of α-Methyl-α-methoxy(pentafluorophenyl)acetic Acid

Valente, Edward J.,Pohl, Lance R.,Trager, William F.

, p. 543 - 546 (2007/10/02)

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