The combined organic layers were washed with ice-cold water (10 mL), dried (Na2SO4), andconcentrated under reduced pressure to a small volume (2 mL). NaBH4 (76 mg, 2 mmol) wasadded in one portion, and MeOH (2 mL) was then added dropwise over a period of 10-15 minat rt. The...
1 Sodium sulfate is a compound with many uses.(a)The formul a of the main compound used as the source of sodium sulfate is Na,SO,.10H,O How many different elements are shown in this formula??C(1)□ A 2 B 3□ C 4□ D 5(b)Sodium sulfate can be made from sodium hydroxide an...
5 (a)Naphth a is a mixture which contains only hydrocarbon molecules.(i)What is meant by the term hydrocarbon?………(ii) Name the raw material that is used to produce a sample of naphtha.[1](b)Compound V is found in naphtha. It has a molecular formul a C10H22-When V is heated...
Me 3 SiI (0.73 ml,0.73 mmol) was added to a soluton of compound1(146 mg, 0.33 mmol) inacetonitrile (10 ml) at room temperature, and the resulting mixture was stirredat room temperature for 2 h. Et 3 N (0.12 ml) was added and themixture was stirred at room temperature for 15 min...
Nitric oxide (NO) is important in some physiological responses of plants and plays a crucial role in the regulation of both defense responses and inducing resistance to fungal pathogens. NUBS-4190, a new bis-aryl-methanone compound elicited NO production and defense responses in Nicotiana benthamiana...
Explain. (a) MgCl_2 (b) CaCO_3 (c) Na_2Cl. What is the name of a compound with the chemical formula V(NO_3)_3? What is the name of the compound with the chemical formula Cr(ClO3)3? What is the name of t...
Alzheimer’s disease (AD) is the most common form of neurodegenerative disease and most anti-AD drugs have failed in clinical trials; hence, it is urgent to find potentially effective drugs against AD. DL-3-n-butylphthalide (NBP) is a compound extracted from celery seed and is a multiple-...
Targeted processing of a subset of known metabolites and was conducted using TraceFinder software version 4.1 (ThermoFisher Scientific). Compound identities were confirmed using reference standards. In all cases, metabolite abundance was normalised using internal standards and relative changes were assessed....
The X-ray crystal structure of dehydroaltenusin, a specific inhibitor of mammalian DNA polymerase alpha, has previously been reported. We show that dehydro... Kamisuki STakahashi SMizushina YSakaguchi KNakata TSugawara F - 《Bioorganic & Medicinal Chemistry》 被引量: 0发表: 2004年 加载更多来...
The first chemical formula that can be established from the mass percent data of elements in a compound is the empirical formula. Empirical formulas give the relative number of atoms of each element present in a compound but not the actual number of...