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D(+)-Raffinose pentahydrate

D(+)-Raffinose pentahydrate structure

CAS No:
17629-30-0
Formula:
C18H42O21
Chemical Name:
D(+)-Raffinose pentahydrate
Synonyms:
RAFFINOSE, 5-HYDRATE;RAFFINOSE PENTAHYDRATE;O-ALPHA-D-GALACTOPYRANOSYL-(1->6)-ALPHA-D-GLUCOPYRANOSYL BETA-D-FRUCTOFURANOSIDE PENTAHYDRATE;6-O-ALPHA-D-GALACTOPYRANOSYL-D-GLUCOPYRANOSYL-BETA-D-FRUCTOFURANOSIDE PENTAHYDRATE;1,6-ALPHA-D-RAFFINOSE PENTAHYDRATE;1,6-A-D-RAFFINOSE PENTAHYDRATE;BETA-D-FRUCTOFURANOSYL-O-ALPHA-D-GLUCOPYRANOSIDE, PENTAHYDRATE;D-(+)-RAFFINOSE
Categories:
Biochemical Engineering > Saccharides

Description

White crystalline powder Raffinose is a white crystalline powder. It is odorless and has a sweet taste approximately 10% that of sucrose.

D-(+)-Raffinose is a trisaccharide composed of galactose, glucose, and fructose that occurs naturally in a variety of vegetables and grains. It is hydrolyzed to galactose and sucrose by α-galactosidase.

fructo-furanose [17629-30-0 (5H2O), 512-69-6 (anhydrous)] M 594.5, m 8 0o, 80 -82o, +124o (c 10, H2O), [ ] D +105o (c 1 for pentahydrate, H2O), pK 1 12.40, pK 2 13.44, pK 3 13.52. D(+)-Raffinose crystallises from H2O, 90% aqueous EtOH or MeOH as the pentahydrate. The anhydrous sugar has m 132-135o. It has RF 0.8 on TLC (Silica Gel, and 1:3:3 CHCl3/butanone:/MeOH). The undecaacetate has been purified through an alumina column by elution with CHCl3, and recrystallised from EtOH/MeOH/H2O (3:2:5), with m 99-100o, [] D +92.8o (c 5.14, EtOH). [pK : Coccioli & Vicedomini Ann Chim (Rome) 66 269, 275 1976, 1H NMR: Suami et al. Carbohydr Research 26 234 1973, Beilstein 17 III/IV 3801, 17/8 V 403.]

D(+)-Raffinose pentahydrate Basic Attributes

Molecular Weight：

594.51

Exact Mass：

594.221858 g/mol

BRN：

4285763

EC Number：

605-771-2

TSCA：

Yes

Color/Form：

White

HScode：

29400000

Characteristics

PSA：

274 Å²

XLogP3：

-7.89290

Appearance：

White crystalline powder

Density：

1.465

Melting Point：

78-80 °C

Boiling Point：

78-82℃

Water Solubility：

143 g/L

Storage Conditions：

Store at RT.

Vapor Pressure：

0mmHg at 25°C

Odor：

Odorless

PH：

5.5-7.0 (25°C, 100g/L in H2O)

Critical Temperature & Pressure：

Inert atmosphere,Room Temperature

Safety Information

wgk germany：

hazard class code：

safety instructions：

24/25-37/39-26

RTECS Number：

LZ5851200

Marks：

Storage features：

Raffinose is stable under ordinary conditions of use and storage. Excessive heat should be avoided to prevent degradation. Thermal decomposition products are carbon monoxide and carbon dioxide.

Hazard Statements：

36/38

Hazardous Reactivities：

Raffinose is incompatible with strong oxidizers.

D(+)-Raffinose pentahydrate Use and Manufacturing

Uses

D-(+)-Raffinose is a trisaccharide built from 1 mol each of D-galactose, D-glucose, and D-fructose which are obtained from it by acid hydrolysis. Invertase splits it into melibiose and saccharose. D-(+)-Raffinose occurs in Australian manna; in cottonseed meal. moisturizes and smoothes skin, prevents skin ageing, promotes skin regeneration: non-digestible with lower efficiency than lactose or sucrose; prebiotic stimulates growth of lactobacilli and bifidobacteria; additive in low-cariogenic fo

Production

Raffinose occurs naturally in Australian manna, cottonseed meal, and seeds of various food legumes. It can be isolated from beet sugar molasses through sucrose separation, seed-crystallization, and filtration.

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Guide of D(+)-Raffinose pentahydrate

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
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