II. Analysis. Given below is a schematic diagram for a simple analysis of a novel tetrasaccharide isolated from a new species of red algae. Analyze each step and the accompanied results of tests, and answer the succeeding questions: A B D a1,4-endoglycosidase treatment A B C D Benedict's test: (+) Seliwanoff's test: (-) Bial's-Orcinol test: (+) Fehling's test: (+) Seliwanoff's test: (-) Bial's-Orcinol test: (-) 2N HCI, 100°C, 60 mins. Osazone test: needle- like crystals, formed 5 mins. C Benedict's test (-) conc. HNO3: rhombic crystals Osazone test: broad, flat crystals, formed 15 mins. Fehling's test: (+) Fehling's test: (+) Seliwanoff's test: (+) Bial's-Orcinol test: (-) TLC Profile Osazone test: needle- like crystals, formed 2 mins.

II. Analysis. Given below is a schematic diagram for a simple analysis of a novel tetrasaccharide isolated from a new species of red algae. Analyze each step and the accompanied results of tests, and answer the succeeding questions: A B D a1,4-endoglycosidase treatment A B C D Benedict's test: (+) Seliwanoff's test: (-) Bial's-Orcinol test: (+) Fehling's test: (+) Seliwanoff's test: (-) Bial's-Orcinol test: (-) 2N HCI, 100°C, 60 mins. Osazone test: needle- like crystals, formed 5 mins. C Benedict's test (-) conc. HNO3: rhombic crystals Osazone test: broad, flat crystals, formed 15 mins. Fehling's test: (+) Fehling's test: (+) Seliwanoff's test: (+) Bial's-Orcinol test: (-) TLC Profile Osazone test: needle- like crystals, formed 2 mins.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter32A: Preparation Of Benzoin By Thiamine Catalysis

Section: Chapter Questions

Problem 2Q

See similar textbooks

Similar questions

A scientist is doing a Fischer Esterfication using methanol that was isotopically labeled 18O (indicated by the 18 as an asterisk). Based off of the possible products in the image, which one will form. I need help answering this using structures and mechanisms.
Give typed answer Full reaction mechanisn
Give the exaplanation of formula and concept.do not provide plagarised content otherwise i dislike Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are1. luciferin+O2 oxyluciferin + light2. ATPAMP+PPDelta * G deg = - 31.6kJ / m * olIf the overall Delta * G deg of the coupled reaction is - 6.3kJ / m * ol what is the equilibrium constant, K, of the first reaction at 30 deg * C ?Express your answer numerically.
1. Which class/classes of organic compounds is/are reactive with the ninhydrin reagent?2. Does the Biuret reagent react with free amino acids to form a colored complex? Explain. Do not copy from google, I will downvote if you do
What is the changes in TZDs (specifically pioglitazone) structure that has direct impact in clinical application? with deep explanation please.
Enalapril is an anti-hypertension "prodrug" (i.e, a drug precursor) that is inactive until the ethyl ester (arrow in figure) is hydrolyzed by esterases present in blood plasma. The active drug is the dicarboxylic acid ("enalaprilat") that results from this hydrolysis reaction. (a) Enalapril is administered in pill form, but enalaprilat must be akdministered intravenously. Why do you suppose enalapril works as a pill, but enalaprilat does not? EtOoC -NH CH3 HOOC Enalapril (b) Enalaprilat is a competitive inhibitor of the angiotensin-converting enzyme (ACE), which cleaves the blood-pressure regulating peptide angiotensin. ACE has a KM = 12 µM for angiotensin, which is present in plasma at a concentration of 75 µM. When enalaprilat is present at 2.4 nM, the activity of ACE in plasma is 10% of its uninhib- ited activity. What is the value of K; for enalaprilat?
Please explain the significance of Wohler’s synthesis of urea in his lab without copying from the internet. No plagiarism, please. Also, please write legibly and clearly too. Thank you.
Which separation technique is the most specific and offers the highest protein purification possible?
please draw out a reaction scheme for 3'-aminoacetophenone and m-toluic acid. show curved arrows.
see attached image.please provide detailed solution because i need clarificatin on the answer
Thoroughly explain why (a)malthose is a reducing sugar while trehalose is not based on their structures. (b)Why is trehalose very resistant to acid hydrolysis while maltose can be acid-hydrolyzed with ease. Give clear explanations.
Experimental observations show that thiocyanate (SCN- ), the conjugate base of thiocyanic acid (pKa = 1.1 at 25 °C), is quite soluble in neutral water at pH > 2. In the space provided below, explain this experimental observation. That is, why does SCN– readily dissolve in water when the pH > 2?