39940-54-0

Basic information

• Product Name: 4-METHYLUMBELLIFERYL-BETA-D-GALACTOSIDE
• CAS NO: 39940-54-0
• Molecular Weight: 0
• Mol File: 39940-54-0.mol
• Article Data: 26

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-METHYLUMBELLIFERYL-BETA-D-GALACTOSIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 4-METHYLUMBELLIFERYL-BETA-D-GALACTOSIDE(39940-54-0)
• EPA Substance Registry System: 4-METHYLUMBELLIFERYL-BETA-D-GALACTOSIDE(39940-54-0)

Safety Data

• Hazardous Substances Data: 39940-54-0(Hazardous Substances Data)

Upstream product

• 3068-32-4 1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside 
• 14795-18-7 Acetic acid (2S,3R,4S,5R,6S)-3,5-diacetoxy-2-acetoxymethyl-6-bromo-tetrahydro-pyran-4-yl ester 
• 330974-67-9 1,2,3,4,6-penta-O-acetyl-L-idopyranose 
• 90-33-5 7-hydroxy-4-methyl-chromen-2-one 
• 66895-31-6 1-(4-methylumbelliferone)-2,3,4,6-tetra-O-acetyl-α-L-idopyranose 
• 4163-65-9 per-O-acetyl-α-D-mannopyranose 
• 83-87-4 β-D-mannopyranose pentaacetate 
• 3947-62-4 2,3,4,6-tetra-O-acetyl-D-mannopyranose 
• 83-87-4 D-Mannose pentaacetate 
• 572-10-1 2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl chloride 
• 5980-33-6 sodium 4-methylumbelliferonate 
• 28541-71-1 4′-methylumbelliferyl 2,3,4,6-tetra-O-acetyl-α-D-mannopyranoside 
• 4163-60-4 β-D-galactose peracetate 
• 67909-26-6 4′-methylumbelliferyl 2,3,4,6-tetra-O-acetyl-α-D-galactopyranoside 

Downstream Products

• 90-33-5 7-hydroxy-4-methyl-chromen-2-one 
• 937018-35-4 4-methylumbelliferyl-2,3,4-tri-O-acetyl-6-O-trityl-β-D-glucopyranoside 
• 84434-84-4 4-methylcoumarin-7-yl-α-L-iduronic acid 

Relevant articles and documents

A ratiometric fluorescent probe for the detection of β-galactosidase and its application

Herein, a coumarin fluorescent probe (Probe1) was developed for the ratiometric detection of β-galactosidase (β-gal) activity. The detection range was 0-0.1 U mL?1and 0.2-0.8 U mL?1, and the limit of detection (LOD) was 0.0054 U mL?1. Moreover, the luminous intensity of Probe1increased gradually with increase in β-gal activity. It could be observed under 254 nm UV irradiation by the naked eye. Furthermore, this method only required a small amount of sample (20 μL) and a short analytical time (30 min) for the detection of β-gal activity with a low LOD. Probe1was successfully used to detect β-gal activity in real fruit samples, and can be applied to the quantitative and qualitative detection of β-gal activity.

Concise synthesis of sulfoquinovose and sulfoquinovosyl diacylglycerides, and development of a fluorogenic substrate for sulfoquinovosidases

The sulfolipid sulfoquinovosyl diacylglycerol (SQDG) and its headgroup, the sulfosugar sulfoquinovose (SQ), are estimated to harbour up to half of all organosulfur in the biosphere. SQ is liberated from SQDG and related glycosides by the action of sulfoquinovosidases (SQases). We report a 10-step synthesis of SQDG that we apply to the preparation of saturated and unsaturated lipoforms. We also report an expeditious synthesis of SQ and (13C6)SQ, and X-ray crystal structures of sodium and potassium salts of SQ. Finally, we report the synthesis of a fluorogenic SQase substrate, methylumbelliferyl α-d-sulfoquinovoside, and examination of its cleavage kinetics by two recombinant SQases. These compounds will assist in dissecting the role of sulfoglycolysis in the biogeochemical sulfur cycle and understanding the molecular basis of sulfoglycolysis.

Based on 4 - methyl [...] synthesis method of a plurality of glycoside

The invention discloses a method for synthesizing various glucosides on a basis of 4-methylumbelliferone. According to the invention, a glycosyl donor peracetyl saccharide and a glycosyl acceptor 4-methylumbelliferone are subjected to a glycosylation reaction under room temperature or under heating with dichloromethane or 1,2-dichloroethane as a solvent and with the combined effect of Lewis acid boron trifluoride ethyl ether and organic alkali triethylamine or pyridine; and protecting groups are removed, such that various glucosides based on 4-methylumbelliferone can be obtained. The glucosides include 4-methylumbelliferone-beta-D-glucopyranosiduronide, 4-methylumbelliferone-beta-D-glucopyranoside, 4-methylumbelliferone-beta-D-xylopyranoside, 4-methylumbelliferone-beta-D-ribofuranoside, 4-methylumbelliferone-alpha-D-galactopyranoside, and 4-methylumbelliferone-alpha-D-mannopyranoside. The method is simple, and can produce a beta or alpha single-configuration target. A glycosylation reaction yield can reach 17-93%.