Call us toll-free

Industrial Chemical - Carbon Disulphide Manufacturer …

When combined with sodium nitrite, both ethylurea and methylurea had a greater effect than DMA.

Approximate price


275 Words


Ester synthesis by oxidative esterification

Following the important discovery by Loveless and Hampton (1969) of the O,6-alkylation of deoxyguanosine by nitrosomethylurea (NMU) and the implications of this reaction in terms of carcinogenicity, O'Connor et al.

(1969a) [Transplacental blastomogenic action of  N-nitrosomethylurea in rat offspring]  Vop.

(1974) The uptake and metabolism of 14 C-labelled nitrosomethylurethane and nitrosomethylurea in guinea pigs and their in vitro metabolism in the guinea pig and human pancreas.

Methemoglobinemia: Primary Industrial Chemicals and …

(1975) Interactive mutagenicity of sodium nitrite, dimethylamine, methylurea and ethylurea.

T1 - Synthesis and crystal structure of bis-μ-(5-chloro-2-hydroxy-N-methyl-α-phenylbenzylideneiminato-N,O)- bis[ethanol(nitrato-O,O′)nickel(II)]

This paper describes the solution combustion synthesis, solid-state characterization, photoelectrochemical behavior, and photocatalytic properties of bismuth vanadate (BiVO4). In particular, the influence of combustion precursor was addressed in this study. Bismuth nitrate pentahydrate was used as the bismuth precursor and either vanadium chloride or vanadium oxysulfate was used as the vanadium precursor. Urea, glycine, or citric acid was used as the fuel. Stoichiometric mixtures (1:1) of the fuels and oxidants (with the Bi:V mole ratio also maintained at 1:1) were subjected to solution combustion synthesis. The resultant samples were characterized by X-ray diffraction, highresolution transmission electron microscopy, diffuse reflectance spectrophotometry, thermal analyses, and laser Raman spectroscopy. Methyl orange was used as a probe to test the photocatalytic attributes of the combustionsynthesized (CS) samples, and benchmarked against a commercial bismuth vanadate sample. The CS samples were superior to the commercial benchmark sample, and samples derived from vanadium chloride were superior to vanadium oxysulfate counterparts. The photoelectrochemical properties of the various CS samples were also studied and these samples were shown to be useful both for environmental photocatalytic remediation and water photooxidation applications.

Sulfoxide synthesis by oxidation - Organic chemistry

(1960) Carcinogenic action of diagomethane and of nitroso- N-methylurethane.

(1971) morpholine lung (adenoma) lung (adenoma) N-methylaniline lung (adenoma) lung (adenoma) morpholine lung (adenoma) lung (adenoma) Table 4 (Cont'd) sodium nitrite + amine Expected tumour Reference oral administration Observed tumour site for amino compounds site corresponding N-nitroso compound N-methylbenzylamine oesophagus oesophagus Sander (1971a) forestomach forestomach piperazine lung (adenoma) lung (adenoma) Greenblatt & Mirvish (1972) N-methylurea lung (adenoma) lung (adenoma) Mirvish et al.

Treatment of pregnant rats with a single dose of 10-30mg of nitrosomethylurea per kg body weight on day 9 of gestation produced anophthalmia, hydrocephaly, exencephaly, and occasionally spina bifida while treatment on days 12-15 produced microcephaly (Alexandrov, 1969a; Koyama et al., 1970; Napaikov, 1971; Von Kreybig, 1965a, 1965b; Von Kreybig & Schmidt, 1966, 1967).

Order now
  • Methyl ethyl ketone (EHC 143, 1992) - INCHEM

    Watrous (1947) and Wrigley (1948) reported cases of accidental exposure to N-nitroso-methylurethane.

  • Materials | Free Full-Text | Zinc Oxide—From Synthesis …

    Nitrate - Wikipedia

  • 1,2-Amino Alcohols and Their Heterocyclic Derivatives …

    Nitrate ester - Wikipedia

Order now

Journal of Nanoscience and Nanotechnology

(1973) proline negative untested Table 4 (Cont'd) sodium nitrite + amine Expected tumour Reference oral administration Observed tumour site for amino compounds site corresponding N-nitroso compound hydroxyproline negative untested arginine negative untested N-methylacetamide negative forestomach N-methylurethane negative forestomach N-ethylurethane negative (carcinogenic Sander (1971b) following i.v.

Global Chemical Network - Chemicals Trading Platform …

administration) N-methylthiourea negative untested N-methylurea brain, nervous brain, nervous system, kidney system, kidney Table 4 (Cont'd) sodium nitrite + amine Expected tumour Reference oral administration Observed tumour site for amino compounds site corresponding N-nitroso compound N-ethylurea brain, nervous brain, nervous system, kidney system, kidney N'N'-dimethylurea brain, nervous brain, nervous Sander (1971b) system, kidney system, kidney imidazolidinone kidney (carcinogenic Sander & Burkle following (1971) s.c.

Ethylammonium nitrate | C2H8N2O3 | ChemSpider

In a number of studies, ascorbic acid has been shown to have an inhibitory effect on: a) nitrosamine formation in the stomach and small intestine of rats treated with 7-chloro-2-methylamino-5-phenyl- 3H-1, 4-benzodiazepine-4-oxide, (chlordiazepoxide, Librium) and sodium nitrite (Preda et al., 1976); b) hepatotoxicity induced by the combined administration of sodium nitrite and aminopyrine in rats (Kamm et al., 1973) and mice (Greenblatt, 1973); c) liver necrosis produced by DMA and nitrite administered to rats by gavage (Cardesa et al., 1974); d) the teratogenic and transplacental carcinogenic effects produced in rats by treatment with alkylurea and nitrite (Ivankovic et al., 1973); and e) the induction of lung adenomas in mice by prolonged treatment with morpholine, piperazine, and methylurea plus nitrite (Mirvish et al., 1975).

Synthesis of dimethyl carbonate from methyl …

N-nitroso- N-methylurea also produced inflammatory haemorrhagic lesions of the stomach, intestine, and pancreas and a reduction in the bone marrow when given orally to rats, (Druckrey et al., 1961, 1967).


The N-nitrosated derivatives of the pesticides propoxur and carbaryl, which are aryl- N-methyl carbamates, and of the herbicide benzothiazuron, a methylurea derivative, induced mitotic gene conversion in Saccharomyces cerevisiae (Sibert & Eisenbrand, 1974).

Order now
  • Kim

    "I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."

  • Paul

    "Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."

  • Ellen

    "Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."

  • Joyce

    "Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."

  • Albert

    "Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."

  • Mary

    "Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."

Ready to tackle your homework?

Place an order