Day: April 11, 2022

Name: 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride, is researched, Molecular C8H12ClNO2, CAS is 148-51-6, about The structure of a sulfur-containing compound with vitamin B6 activity.

Pyridoxal-HCl (0.001 mole) was added to a warm solution of 0.001 mole 2,4-dinitrophenylhydrazine in 40 ml. of 95% EtOH, the mixture gently heated 5 min., after cooling the orange-yellow crystals collected and suspended 3 times in water with stirring (30 min.) (the crystal color changed to red), filtered off, dried, and recrystallized from iso-BuOH to give yellow crystals of 2,4-dinitrophenylhydrazone, m. 256-7°. To 500 mg. diacetate of bis-4-pyridoxyl disulfide (IV) (500 mg.) in 5 ml. 0.1N HCl was added acetone to a slight turbidity. After standing in the cold, 360 mg. crystals of di-HCl salt separated, m. 222°. IV.2HCl (441 mg.) dissolved in 220 ml. H2O, neutralized with 168 mg. NaHCO3, shaken with 2.0 g. Raney Ni catalyst and 3 atm. H 4 hrs. at 25°, the catalyst removed, the combined filtrates concentrated in vacuo in 10 ml., solid NaHCO3 added to pH 8.6, the solution extracted with CHCl3 30 hrs., the extract concentrated to a sirup which was dissolved in EtOH, and alc. HCl added yielded 250 mg. crystals, m. 264-5°. IV.2HCl (500 mg.), 600 mg. Sn foil, and 6 ml. 4N HCl was shaken 20 hrs. at room temperature; after diluting with H2O the Sn removed as sulfide by filtration, the filtrate dried in vacuo, and recrystallized from EtOH gave 250-300 mg. 4-pyridoxyl mercaptan (VI). VI (100 mg. in 25 ml. H2O) was adjusted to pH 8.5 with 2N NH4OH and air passed through the solution until the nitroprusside test was neg. Oxidation was accompanied by the precipitation of the free base of IV in 66% yield, m. 222°. A mixed sample of SB8.2HCl (Berhart, et al., CA 54, 19993c) and IV.2HCl did not depress the m.p. The identity of both compounds was proved by paper chromatography.

Here is just a brief introduction to this compound(148-51-6)Name: 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride, more information about the compound(5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride) is in the article, you can click the link below.

Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

COA of Formula: C5H6O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5-Methylfuran-2(3H)-one, is researched, Molecular C5H6O2, CAS is 591-12-8, about An approach to identifying fibers and evolved compounds from flame resistant fabrics. Author is McPartlin, Michael W.; Italiano, Brandon R.; Tiano, Thomas M.; Pilkenton, Sarah J.; Lawton, Timothy J..

Flame resistant (FR) fabrics have use in civilian, military, and industrial applications. This work describes the development of a methodol. aimed at identifying the fiber composition of blended fabrics of unknown composition Here, FR fabrics used in military uniforms, are studied using a combination of XPS, isothermal thermogravimetric anal. (TGA) and pyrolysis gas chromatog./mass spectrometry (Py-GC-MS). Elemental anal. of the fabrics using XPS yielded a preliminary determination of the composition of the polymer(s) and aided in the identification of FR additives. TGA and Py-GC-MS experiments were used for subsequent compound identification. In TGA the temperature of mass loss events was compared to reference materials, and in Py-GC-MS the pyrolysis products of the blended FR fabrics were compared to those from a series of potential parent fibers. It was possible to discern the composition of the parent fibers and the type of FR treatment added to fabrics because the thermal decomposition chem. did not significantly change by blending the fibers to make fabrics.

Here is just a brief introduction to this compound(591-12-8)COA of Formula: C5H6O2, more information about the compound(5-Methylfuran-2(3H)-one) is in the article, you can click the link below.

Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-Chloro-8-methylquinoline, is researched, Molecular C10H8ClN, CAS is 18436-73-2, about Synthesis and photochemistry of two quinoline analogs of the perimidinespirohexadienone family of photochromes.Computed Properties of C10H8ClN.

The authors report the detailed synthesis and photochem. of two analogs (specifically 3,5-di-tert-butyl-7′-methyl- and 3,5-di-tert-butyl-7′,9′-dimethyl-1′,3′-dihydrospirocyclohexa[2,5]diene-1,2′-pyrido[4,3,2-de]quinazolin-4-one) of the perimidinespirohexadienone (3,5-di-tert-butyl-1′,3′-dihydrospirocyclohexa[2,5]diene-1,2′-perimidin-4-one) family of photochromes in which the naphthalene moiety of the parent is replaced by a quinoline, and compare them to the parent compound Molar absorptivities of both the short wavelength spirocyclic isomer (SW) and long wavelength quinonimine isomer (LW) of each were determined by a combination of proton NMR and UV-vis spectroscopy in solvents of varying polarity. Quantum yield measurements for photoisomerization of SW to LW are reported in those same solvents, with qual. extrapolation to addnl. solvents. The position and rate of the thermal equilibrium reverting LW to SW is estimated for these compounds The 9′-Me in SW (6-Me in LW) is found to be essential for complete reversion of LW to SW in the dark. Finally one-dimensional NOE NMR spectroscopy was used to conclusively determine the structure of LW for the quinoline analogs as the 4-(5-aminoquinolin-4-ylimino)-2,6-di-tert-butylcyclohexa-2,5-dienone resulting from opening toward the quinoline nitrogen, rather than the 4-(4-aminoquinolin-5-ylimino) structure that would result from spirocyclic ring opening away from the quinoline nitrogen which had been initially proposed by V.I Minkin et al. (1999) for very similar compounds

Here is just a brief introduction to this compound(18436-73-2)Computed Properties of C10H8ClN, more information about the compound(4-Chloro-8-methylquinoline) is in the article, you can click the link below.

Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Biological radiation protection. LIX. The meaning of radiation-caused changes in the content of metabolites to the survival rate of mice, published in 1964, which mentions a compound: 148-51-6, Name is 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride, Molecular C8H12ClNO2, Electric Literature of C8H12ClNO2.

After radiation, changes occur in albumin metabolism, especially in the case of tryptophan and cysteine. The changes reflect a curbing of the activity of amino acid decarboxylase with pyridoxal 5-phosphate as coenzyme. The following compounds increased the mortality rate when given with an x-ray dose of 505 r. (L.D.16/30): 4-deoxypyridoxine-HCl, isonicotinic acid hydrazide,DL-tryptophan, DL-kynurenine, and L-kynurenine. Taurine, given with 590 r. (L.D.64/30), increased the survival rate.

Here is just a brief introduction to this compound(148-51-6)Electric Literature of C8H12ClNO2, more information about the compound(5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride) is in the article, you can click the link below.

Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia

Sanders, L. B.; Cetorelli, J. J.; Winefordner, James D. published an article about the compound: 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride( cas:148-51-6,SMILESS:OC1=C(C)C(CO)=CN=C1C.[H]Cl ).Recommanded Product: 148-51-6. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:148-51-6) through the article.

Phosphorescence excitation and emission wavelength peaks, lifetimes, limits of detection, and concentration ranges of anal. usefulness of 37 antimetabolites in rigid (77°K.) ethanolic solution were determined Seventeen of the metabolites produced anal. useful phosphorescence, whereas the remaining 20 were of limited or no anal. use.

Here is just a brief introduction to this compound(148-51-6)Recommanded Product: 148-51-6, more information about the compound(5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride) is in the article, you can click the link below.

Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia