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3-Butynoic acid, 2,2-dimethyl-4-[6-(phenylmethoxy)-2-pyridinyl]-, methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

188990-86-5

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188990-86-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188990-86-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,9,9 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 188990-86:
(8*1)+(7*8)+(6*8)+(5*9)+(4*9)+(3*0)+(2*8)+(1*6)=215
215 % 10 = 5
So 188990-86-5 is a valid CAS Registry Number.

188990-86-5Relevant academic research and scientific papers

Acid-amide intermolecular hydrogen bonding

Wash, Paul L.,Maverick, Emily,Chiefari, John,Lightner, David A.

, p. 3802 - 3806 (1997)

A 2,2-dimethylbutynoic acid with a pyridone terminus (1) acts as its self-complement in molecular recognition to form an intermolecularly hydrogen-bonded dimer with hydrogen bonding between the amide and carboxylic acid group. The dimer is found in crystals of 1 by X-ray diffraction, in chloroform solution by 1H-NMR experiments and vapor pressure osmometry, and in the gas phase by FAB-MS.

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