4481-52-1 Usage
General Description
2-[(2-hydroxyphenyl)methoxymethyl]phenol, also known as guaifenesin, is a medication commonly used as an expectorant to help loosen mucus in the airways. It is derived from the compound guaiacol and acts by increasing the volume and reducing the viscosity of respiratory tract secretions, making it easier to cough up and clear the airways. Guaifenesin is often used to relieve symptoms of respiratory conditions such as bronchitis, asthma, and the common cold. It is available in various forms including tablets, syrups, and extended-release tablets, and is generally well-tolerated with few side effects. However, it should be used cautiously in individuals with certain medical conditions or those taking other medications, and a healthcare professional should be consulted before starting guaifenesin.
Check Digit Verification of cas no
The CAS Registry Mumber 4481-52-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,8 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4481-52:
(6*4)+(5*4)+(4*8)+(3*1)+(2*5)+(1*2)=91
91 % 10 = 1
So 4481-52-1 is a valid CAS Registry Number.
4481-52-1Relevant articles and documents
One- and Two-Dimensional NMR Study of Resol Phenol-Formaldehyde Prepolymer Resins
Fisher, Thomas H.,Chao, Ping,Upton, G. Cindy,Day, Anthony J.
, p. 717 - 723 (2007/10/02)
A one- and two-dimensional NMR study was performed on three commercial resol phenol-formaldehyde (PF) prepolymer resins. 1H, 13C, CSCM and DQF COSY NMR spectral data, in acetone-d6, were obtained on each resin and on PF model compounds: phenol, five methylolphenols, four diphenylmethanes, two formals, two dibenzyl ethers and two dibenzylamines.Gated-decoupled 13C experiments, using 2,4,6-trimethylphenol as internal standard, were used to quantitate the major components present in each of the three resins.The major chemical differences of the three resins were noted.A DQF COSY method was developed that allowed the qualitative identification of most of the major phenolic components present in each of the PF resins. - Keywords: NMR; 1H NMR; 13C NMR; Phenol-formaldehyde resins
