GENTIOBIOSE suppliers

GENTIOBIOSE

CAS:: 554-91-6

MF:: C12H22O11

MW:: 342.3

Use：: -Gentiobiose is best purified via the octaacetate which is recrystallised from MeOH, EtOH or better from methyl cellosolve by heating at 80o. The octaacetate (15g) is hydrolysed by suspending it in dry 0.05N NaOMe in MeOH (180mL) for 1hour with occasional shaking at room temperature. Dilute this with H2O to dissolve suspended matter, pass through Amberlite IR-120 and Duolite A-4 columns and the eluate is evaporated under reduced pressure to a syrup. Residual H2O is removed by repeated distillation with absolute EtOH under reduced pressure. The syrup is dissolved in methyl cellosolve (~40mL), filtered, nucleated and placed in an oven at 80o. The crystals are filtered off, washed with absolute EtOH (yield 6.7g, 89%), dried and have m 187-189o. Further recrystallisation from methyl cellosolve gives m 190o, and mutarotates from [] D 28 -1.5o (initial) to +10.6o (final, c 4, H2O). The -octaacetate has m 193o (crystallised from 95% EtOH) and has [] D 20 -5o (c 1.8, CHCl3). [Goldstein & Whelan Methods in Carbohydrate Chemistry I 313 1962, Academic Press, Beilstein 17/7 V 203.]

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You can find GENTIOBIOSE suppliers, manufacturers, and distributors from countries such as China, United States and the United Kingdom here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.

Hebei Weibang Biotechnology Co., Ltd

GENTIOBIOSE
Remarks: Purity: 99%|Package: 1KG;9.90;USD
CHINA Trader

￥9.90/1KG

Hebei Mujin Biotechnology Co.,Ltd

GENTIOBIOSE
Remarks: Purity: 99% | Package: 25KG
TEL: +86 13288715578
CHINA Service provider

￥0.00/25KG

Henan Tianfu Chemical Co.,Ltd.

GENTIOBIOSE
Remarks: Purity: 99% | Package: 25KG;5KG;1KG
TEL: 0371-+86-0371-55170693
CHINA Trader

BOC Sciences

b-D-Gentiobiose
Remarks: CustNote: BOC Sciences also provides custom synthesis services for b-D-Gentiobiose.
UNITED STATES Trader

career henan chemical co

gentiobiose
Remarks: Purity: >=98% | Package: 1KG;2USD
TEL: 0371-86658258
CHINA Trader

￥2.00/1KG

TargetMol Chemicals Inc.

β-Gentiobiose
Remarks: Purity: 99.75% | Package: 10mg;30USD|25mg;45USD|50mg;64USD | CustNote: REAGENT;FOR LABORATORY USE ONLY
TEL: +1-781-999-5354
UNITED STATES Trader

Hefei TNJ Chemical Industry Co.,Ltd.

gentiobiose
TEL: 0551-65418671
CHINA Reagent

Alfa Chemistry

GENTIOBIOSE
UNITED STATES Manufacturer

Wuhan Fortuna Chemical Co., Ltd

Gentiobiose
Remarks: Purity: 98%min | Package: 10G
TEL: 027-59207850
CHINA Trader

￥0.00/10G

Dayang Chem (Hangzhou) Co.,Ltd.

Gentiobiose
Remarks: Purity: 0.95&0.99 | Package: 0.1KG;1KG;1000KG | CustNote: Hot sales
TEL: 571-88938639
CHINA Trader