5556-48-9

Basic information

• Product Name: erythro-2-Pentulose (9CI)
• Synonyms: erythro-2-Pentulose (9CI);ribulose;D-Erythropentulose;D-Erythro-pentulose;Erythropentulose
• CAS NO: 5556-48-9
• Molecular Formula: C₅H₁₀O₅
• Molecular Weight: 150.1299
• Product Categories: CARBOHYDRATE
• Mol File: 5556-48-9.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 469.1°Cat760mmHg
• Flash Point: 251.6°C
• Appearance: /
• Density: 1.516g/cm³
• Refractive Index: 1.635
• CAS DataBase Reference: erythro-2-Pentulose (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: erythro-2-Pentulose (9CI)(5556-48-9)
• EPA Substance Registry System: erythro-2-Pentulose (9CI)(5556-48-9)

Safety Data

• Hazardous Substances Data: 5556-48-9(Hazardous Substances Data)

Usage

Definition

ribulose: A ketopentose sugar (seemonosaccharide), C5H11O5, that isinvolved in carbon dioxide fixation inphotosynthesis as a component ofribulose bisphosphate.

InChI:InChI=1/C11H9Cl3N4O2/c12-11(13,14)9(18-10-15-4-2-5-16-10)17-8(19)7-3-1-6-20-7/h1-6,9H,(H,17,19)(H,15,16,18)

Upstream product

• 96-26-4 dihydroxyacetone 
• 141-46-8 Glycolaldehyde 
• 87-99-0 XYLITOL 
• 7558-89-6 ribulose 
• 67-64-1 acetone 
• 488-81-3 Adonitol 

Relevant articles and documents

Aldol Reaction between Small Sugars. Preparation of DL-threo-2-Pentulose and DL-lyxo-3-Hexulose and their Isolation as O-Isopropylidene Derivatives

The improved diastereoselectivity obtained with strongly basic anion-exchange resin as catalyst in aldol condensation between two-, three- and four-carbon "sugars" has been utilised in the preparation of DL-threo-2-pentulose and DL-lyxo-3-hexulose, which were isolated as their O-isopropylidene derivatives.A possible reason for the observe preference of formation of the lyxo-diastereomer in condensation between glycolaldehyde and glycero-tetrulose is suggested.

Kinetics, Catalysis, and Mechanism of the Secondary Reaction in the Final Phase of the Formose Reaction

In the final phase of the formose reaction sugars are formed by the reaction of glycolaldehyde, glyceraldehyde and dihydroxyacetone.The application of high-pressure liquid chromatography allows for the first time to investigate intermediate and final products quantitatively.The results of kinetical investigations allow to suggest a reaction mechanism for the secondary reaction in the final phase of the formose reaction.This mechanism is compared with that of the starting phase and other known mechanisms.From the results metal ion-catalyzed aldol reactions have to be assumed.