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alpha-L-Rhamnose

alpha-L-Rhamnose  Structure
CAS No.
3615-41-6
Chemical Name:
alpha-L-Rhamnose
Synonyms
L-RHAMNOSE;RHAMNOSE;Rhamnopyranose;6-Deoxy-L-mannose;(2R,3R,4S,5S)-2,3,4,5-Tetrahydroxyhexanal;ALPHA-RHAMNOSE;L-Mannose, 6-deoxy-;6-Deoxyhexopyranose;alpha-L-Rhamnopyranose;Locaose
CBNumber:
CB8468905
Molecular Formula:
C6H12O5
Molecular Weight:
164.16
MOL File:
3615-41-6.mol
Modify Date:
2024/7/2 8:55:36

alpha-L-Rhamnose Properties

Melting point 91-95°C
Boiling point 251.61°C (rough estimate)
Density 1.3058 (rough estimate)
refractive index 1.6400 (estimate)
FEMA 3730 | L-RHAMNOSE
storage temp. 2-8°C
pka 12.50±0.20(Predicted)
form Solid
color White to off-white
Odor at 100.00 %. odorless
Odor Type odorless
Water Solubility 521.5g/L(40 ºC)
Merck 8172
LogP -2.17 at 25℃
CAS DataBase Reference 3615-41-6(CAS DataBase Reference)
NIST Chemistry Reference L-Mannose, 6-deoxy-(3615-41-6)
EPA Substance Registry System L-Mannose, 6-deoxy- (3615-41-6)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338

alpha-L-Rhamnose Chemical Properties,Uses,Production

Chemical Properties

White crystals. For equilibrium mixture optical rotation is +9.18 degrees. Very soluble in water and in methanol; soluble in absolute alcohol.

Uses

Synthetic sweetener research.

Definition

ChEBI: The acyclic form of L-rhamnose.

Purification Methods

Crystallise the rhamnose from H2O or EtOH. It crystallises easily as the monohydrate by evaporating a solution in MeOH (90%) and H2O (10%). It is also purified by dissolving in a small volume of EtOH, adding a few drops of H2O and cooling. 1H NMR in D2O at 44o contains 60% -pyranose and 40% -pyranose forms [Angyal Adv Carbohydr Chem 42 15 1984.] [Smith J Chem Soc 1035 1940, McGeachin & Beevers Acta Cryst 10 227,230 197, Beilstein 1 IV 4261.]

alpha-L-Rhamnose Preparation Products And Raw materials

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6-deoxy-l-mannos 6-Deoxymannose Isoducitol L-Mannopyranose, 6-deoxy- Locaose Mannose, 6-deoxy- Rhamnopyranose, L- L-MANNOMETHYLOSE L-(+)-RHAMNOSE ISODULCITOL ISO-DULCITE (3R,4R,5S,6S)-6-methyloxane-2,3,4,5-tetrol alpha-6-Deoxy-L-mannose alpha-L-Mannomethylose alpha-L-Rhamnose RHAMNOSE MONOHYDRATE, L-(+)-(RG) L-Rhamnose dihydrate aldehydo-L-rhamnose L-Rhamnose,>98% alpha-L-Rhamnose USP/EP/BP laevo-rhamnose C6H12O5 alpha-L-Rhamnose 3615-41-6 (2R,3R,4S,5S)-2,3,4,5-Tetrahydroxyhexanal alpha-L-Rhamnopyranose 6-Deoxy-L-mannose L-Mannose, 6-deoxy- L-RHAMNOSE ALPHA-RHAMNOSE RHAMNOSE Rhamnopyranose 6-Deoxyhexopyranose 3615-41-6 1003-85-0 FINE Chemical & INTERMEDIATES Biochemistry Deoxysugars Rhamnose Sugars Dextrins、Sugar & Carbohydrates Plant extracts Herb extract bc0001