Names | |
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IUPAC name
α-D-glucopyranosyl-(1→1)-α-D-glucopyranoside
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Systematic IUPAC name
(2R,3S,4S,5R,6R)-2-(Hydroxymethyl)-6-[(2R,3R,4S,5S,6R)-3,4,
5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-3,4,5-triol | |
Other names
α,α‐Trehalose
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.002.490 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C12H22O11 (anhydride) | |
Molar mass | 342.296 g/mol (anhydrous) 378.33 g/mol (dihydrate) |
Appearance | White orthorhombic crystals |
Density | 1.58 g/cm3 at 24 °C |
Melting point | 203 °C (397 °F; 476 K) (anhydrous) 97 °C (dihydrate) |
68.9 g per 100 g at 20 °C[1] | |
Solubility | Slightly soluble in ethanol, insoluble in diethyl ether and benzene[2] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Trehalose (from Turkish tıgala – a sugar derived from insect cocoons + -ose)[3] is a sugar consisting of two molecules of glucose. It is also known as mycose or tremalose. Some bacteria, fungi, plants and invertebrate animals synthesize it as a source of energy, and to survive freezing and lack of water.
Extracting trehalose was once a difficult and costly process, but around 2000, the Hayashibara company (Okayama, Japan) discovered an inexpensive extraction technology from starch.[4][5] Trehalose has high water retention capabilities, and is used in food, cosmetics and as a drug. A procedure developed in 2017 using trehalose allows sperm storage at room temperatures.[6]