Merck D-(+)-Raffinose pentahydrate

D-(+)-Raffinose pentahydrate may be used as a standard for the determination of free sugars of plants for separating the trimethylsilyl ethers by gas chromatography method.

grade:   analytical standard

Quality Level:  100

Assay:  ≥99.0% (HPLC)

optical activity:   [α]/D 105±2°, c = 10 in H2O

shelf life:   limited shelf life, expiry date on the label

analyte chemical class(es):   oligosaccharides

impurities:   13-17% water

application(s):   food and beverages

format:   neat

SMILES string:   O.O.O.O.O.OC[C@H]1O[C@H](OC[C@H]2O[C@H](O[C@]3(CO)O[C@H](CO)[C@@H](O)[C@@H]3O)[C@H](O)[C@@H](O)[C@@H]2O)[C@H](O)[C@@H](O)[C@H]1O

InChI:   1S/C18H32O16.5H2O/c19-1-5-8(22)11(25)13(27)16(31-5)30-3-7-9(23)12(26)14(28)17(32-7)34-18(4-21)15(29)10(24)6(2-20)33-18;;;;;/h5-17,19-29H,1-4H2;5*1H2/t5-,6-,7-,8+,9-,10-,11+,12+,13-,14-,15+,16+,17-,18+;;;;;/m1...../s1

InChI key:   BITMAWRCWSHCRW-PFQJHCPISA-N

General description

Raffinose pentahydrate is a crystalline form of pharmaceutical sugar, raffinose which may act as ′scavengers′ or ′reservoirs′ for water with the pharmaceutical formulations.

Application

D-(+)-Raffinose pentahydrate may be used as a standard for the determination of free sugars of plants for separating the trimethylsilyl ethers by gas chromatography method.