IUPAC name
15879-93-3 N
3D model (Jmol) Interactive image
ChEMBL ChEMBL2104181 N
ChemSpider 5414376 YesY
ECHA InfoCard 100.036.363
EC Number 240-016-7
KEGG C18707 N
MeSH Chloralose
PubChem 7057995
40467114 (2R,3aR,5R,6R)-6-hydroxy-2-methyl-furo-5-yl
27525 (2R,5R,6S,6aR)-6-hydroxy-2-methyl-furo-5-yl
16211632 (1R)-dioxol, (2R,5R,6S,6aR)-6-hydroxy-2-methyl-furo-5-yl
186624 (1R)-dioxol, (3aR,5R,6S,6aR)-6-hydroxy-furo-5-yl
2723807 (2R,3aR,5R,6S,6aR)-6-hydroxy-2-methyl-furo-5-yl
RTECS number FM9450000
Molar mass 309.52 g·mol−1
Melting point 176 to 182 °C (349 to 360 °F; 449 to 455 K)
Main hazards Harmful if swallowed

Harmful if inhaled

R-phrases R20/22
S-phrases (S2) S16 S24/25 S28
Related compounds
Related compounds
Chloral hydrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Chloralose is an avicide, and a rodenticide used to kill mice in temperatures below 15 °C. It is also widely used in neuroscience and veterinary medicine as an anesthetic and sedative.[1] Its anesthetic action is due to positive allosteric agonism of the GABAA receptor, and as such is capable of affecting humans. Symptoms of exposure would be similar to the presentation of a benzodiazepine overdose and may be fatal (by means of respiratory arrest and subsequent hypoxia) but mechanical ventilation reduces the risk of death after exposure to near zero if medical assistance is obtained promptly.

Chemically, it is a chlorinated acetal derivative of glucose.

It is listed in Annex I of Directive 67/548/EEC with the classification Harmful (Xn)


  1. Silverman J, Muir WW (Jun 1993). "A review of laboratory animal anesthesia with chloral hydrate and chloralose". Lab Anim Sci. 43 (3): 210–6. PMID 8355479.

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