Benzoin lab report

Lab Report Lab Report Discussion: When synthesizing complex organic molecules, it is common to have at least a dozen individual transformations whereby the product of one reaction is then used as the starting material for the next reaction. A multistep synthesis starts with inexpensive, readily available benzaldehyde. The sequence will attempt to first the conversion of benzaldehyde to benzoin using the vitamin, thiamin, as a catalyst.

Benzoin lab report

hard, white or faintly yellowish crystalline solid Food and Agriculture Organization of the United Nations Hexadecanoic acid: white chips, crystals or powder Oxford University Chemical Safety Data (No longer updated) More details. thiamine hydrochloride is the limiting reagent, therefore moles of thiamine hydrochloride = moles of benzoin = theoretical yield actual yield: molarity of benzoin = (weight of benzoin) / (MW of benzoin) = ( g) / ( g/mol) = mol. Jan 24,  · α-Diketones are very useful in the preparation of cyclic compounds of great value. Benzil, an α-diketone, is prepared by the oxidation of an α-hydroxyketone, leslutinsduphoenix.com oxidation can easily be done with mild oxidizing agent.

In terms of severity, 2. Blood and Lymphatic System Disorders: Palpitations, ventricular extrasystoles Gastrointestinal Disorders: Abdominal discomfort, nausea General Disorders: Feeling cold, lethargy, malaise, edema peripheral, pain, pain exacerbated, weakness, weight decreased Hepatobiliary Disorders: Hepatic disorder Injury, Poisoning and Procedural Complications: Stent occlusion Laboratory Investigations: Aspartate aminotransferase increased, blood glucose increased, blood lactate dehydrogenase increased, blood testosterone increased, creatinine clearance decreased, prostatic acid phosphatase increased Metabolism and Nutrition Disorders: Appetite increased, fluid retention, food craving, hypercalcaemia, hypercholesterolemia Musculoskeletal and Connective Tissue Disorders: Arthralgia, back pain, back pain aggravated, bone pain, muscle twitching, myalgia, neck pain, pain in limb Nervous System Disorders: Dizziness, Benzoin lab report Psychiatric Disorders: Depression, irritability Renal and Urinary Disorders: Calculus renal, dysuria, hematuria aggravated, renal failure aggravated, urinary frequency, urinary frequency aggravated, urinary retention Reproductive System and Breast Disorders: Breast pain, breast tenderness, genital pruritus male, gynecomastia aggravated, sexual dysfunction Respiratory, Thoracic and Mediastinal Disorders: Dyspnea exertional Skin and Subcutaneous Tissue Disorders: Contusion, hypotrichosis, night sweats, pruritus, sweating increased Vascular Disorders: Flushing, hematoma Changes in Bone Density: It can be anticipated that long periods of medical castration in men will have effects on bone density.

Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Cases of pituitary apoplexy a clinical syndrome secondary to infarction of the pituitary gland have been reported after the administration of gonadotropin-releasing hormone agonists. In a majority of these cases, a pituitary adenoma was diagnosed with a majority of pituitary apoplexy cases occurring within 2 weeks of the final dose, and some within the first hour.

In these cases, pituitary apoplexy has presented as sudden headache, vomiting, visual changes, opthalmoplegia, altered mental status, and sometimes cardiovascular collapse. Immediate medical attention has been required.

Therapy with histrelin results in suppression of the pituitary-gonadal system. Results of diagnostic tests of pituitary gonadotropic and gonadal functions conducted during and after histrelin therapy may be affected.

The possibility exists that spontaneous abortion may occur. Major fetal abnormalities were observed in rabbits but not in rats after administration of histrelin acetate throughout gestation. There were increased fetal mortality and decreased fetal weights in rats and rabbits. These effects on fetal mortality are expected consequences of the alterations in hormonal levels brought about by this drug.

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If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus.

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from VANTAS, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

VANTAS is designed to deliver approximately 50 mcg histrelin acetate per day equivalent to approximately 41 mcg histrelin per day over 12 months. The sterile VANTAS implant looks like a small thin flexible tube and consists of a mg histrelin acetate drug core inside a 3.

The implant may appear partially to completely full with variation in color from off-white to light brown. The color may be uneven within the core. Histrelin acetate has the following structural formula: The drug core also contains the inactive ingredient stearic acid NF.

Each implant is packaged hydrated in a glass vial containing 2 mL of sterile 1. The implant is primed for immediate release of the drug upon insertion.Oxidation of Benzoin to Benzil with Nitric Acid.

Kenyon College – Chem – Organic Chemistry Lab II (adapted from K. L. Williamson, Macroscale and Microscale Organic Experiments, 2nd Ed. , Houghton Mifflin, Boston.

p). Organic Chemistry II Laboratory Stereospecific Reduction of Benzoin with Sodium Borohydride; Experiment 9 Determination of the Stereochemistry by NMR Spectroscopy1,2 Week 9 Background Reading Zubrick, J.

W. The Organic Chem Lab Survival Manual, 5th . can someone to help me go through my chem lab report of benzil prepared from benzoin, benzilic acid from benzil and hydrobenzoin from benzil. There are two questions I need get help. Benzoin Lab Report.

Benzoin lab report

Topics: Laboratory glassware, You are encouraged to refer to this document each time you write a lab report. The writing of laboratory reports is an essential part of any practical module in Psychology.

This is because psychologists (and more generally most scientists) write accounts of their studies using a standard. This text for the two-semester introductory organic chemistry lab offers a series of clear and concise experiments that encourage accurate observation and deductive reasoning. A. B.

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