1,4-Naphthalenedione,5,8-dihydroxy-6-[(1S)-1-hydroxy-4-methyl-3-penten-1-yl]- cas no:23444-65-7

Name1,4-Naphthalenedione,5,8-dihydroxy-6-[(1S)-1-hydroxy-4-methyl-3-penten-1-yl]-
CAS23444-65-7
Synonyms1,4-Naphthalenedione,5,8-dihydroxy-6-(1-hydroxy-4-methyl-3-pentenyl)-, (S)-; 1,4-Naphthalenedione,5,8-dihydroxy-6-[(1S)-1-hydroxy-4-methyl-3-pentenyl]- (9CI);1,4-Naphthoquinone, 5,8-dihydroxy-6-(1-hydroxy-4-methyl-3-pentenyl)-, (-)-(8CI); Alkanet extract; Alkanet extract, inspissated; Alkanna red; Alkannin;Anchusa acid; Anchusin; C.I. 75530; C.I. Natural Red 20
Molecular FormulaC16H16 O5
Molecular Weight288.32

Safety

Risk Statements: 22 
R22: (−)-(1-Hydroxy-3-isohexenyl)naphth-azarine (CAS NO.23444-65-7) is harmful if swallowed.
Safety Statements: 22-24/25
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes.

Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	oral	3gm/kg (3000mg/kg)		Nahrung. Chemistry, Biochemistry, Microbiology, Technology, Nutrition. Vol. 15, Pg. 505, 1971.
rat	LD50	oral	> 1gm/kg (1000mg/kg)		Nahrung. Chemistry, Biochemistry, Microbiology, Technology, Nutrition. Vol. 15, Pg. 505, 1971.