19318-51-5

Basic information

• Product Name: 2-O,4-O-Dimethyl-D-mannitol 1,3,5,6-tetraacetate
• Synonyms: 2-O,4-O-Dimethyl-D-mannitol 1,3,5,6-tetraacetate
• CAS NO: 19318-51-5
• Molecular Weight: 0
• Mol File: 19318-51-5.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-O,4-O-Dimethyl-D-mannitol 1,3,5,6-tetraacetate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-O,4-O-Dimethyl-D-mannitol 1,3,5,6-tetraacetate(19318-51-5)
• EPA Substance Registry System: 2-O,4-O-Dimethyl-D-mannitol 1,3,5,6-tetraacetate(19318-51-5)

Safety Data

• Hazardous Substances Data: 19318-51-5(Hazardous Substances Data)

Upstream product

• 75547-73-8 6²-β-D-glucopyranosyl-laminaratriose 
• 74-88-4 methyl iodide 
• 108-24-7 acetic anhydride 

Relevant articles and documents

A novel low-molecular-mass pumpkin polysaccharide: Structural characterization, antioxidant activity, and hypoglycemic potential

The novel natural low-molecular-mass polysaccharide (SLWPP-3) from pumpkin (Cucurbia moschata) was separated from the waste supernatant after macromolecular polysaccharide production and purified using a DEAE cellulose-52 column and gel-filtration chromatography. Chemical and instrumental studies revealed that SLWPP-3 with a molecular mass of 3.5 kDa was composed of rhamnose, glucose, arabinose, galactose and uronic acid with a weight ratio of 1: 1: 4: 6: 15, and primarily contained →3,6)-β-D-Galp-(1→, →4)-α-GalpA-(1→(OMe), →4)-α-GalpA-(1→, →2,4)-α-D-Rhap-(1→, →3)-β-D-Galp-(1→, →4)-α-D-Glcp, and →4)-β-D-Galp residues in the backbone. The branch chain passes were connected to the main chain through the O-4 atom of glucose and O-3 atom of arabinose. Physiologically, the ability of SLWPP-3 to inhibit carbohydrate-digesting enzymes and DPPH and ABTS radicals, as well as protect pancreatic β cells from oxidative damage by decreasing MDA levels and increasing SOD activities, was confirmed. The findings elucidated the structural types of pumpkin polysaccharides and revealed a potential adjuvant natural product with hypoglycemic effects.

Water-soluble polysaccharides from finger citron fruits (Citrus medica L. var. sarcodactylis)

Four water-soluble polysaccharides, FCp-1, FCp-2, FCp-3, and FCp-4 were obtained from finger citron fruits (Citrus medica L. var. sarcodactylis) by hot-water extraction and ethanol precipitation, followed by routine separation procedure. Based on the calibration curve, molecular weights of them were estimated to be 113.9, 32.6, 140.3, and 177.1 kDa respectively. The acid hydrolysis, methylation, IR, GC-MS, and NMR experiments were used for composition analysis. FCp-1 was a heteropolysaccharide composed of arabinose, galactose, glucose, rhamnose, and xylose, with a molar ratio of 3.0:7.0:4.1:1.0:1.5. FCp-2 and FCp-4 were →4)-α-d-GalpA(1→ linking galacturonan differ in molecular weights. FCp-3 was a →6)-α-d-Glcp(1→ linking glucan. According to the results of in vitro assays, FCp-3 showed significantly and moderately enhancing capacities toward the proliferation of splenocytes and thymocytes respectively. Thus, FCp-3 or analogs may have further use as immunomodulatory agents.