Norcantharidin

Modify Date: 2025-08-26 17:35:45

Norcantharidin structure	Common Name	Norcantharidin
	CAS Number	5442-12-6	Molecular Weight	168.147
	Density	1.5±0.1 g/cm3	Boiling Point	362.5±35.0 °C at 760 mmHg
	Molecular Formula	C₈H₈O₄	Melting Point	N/A
	MSDS	N/A	Flash Point	167.0±26.0 °C

Name	Norcantharidin
Synonym	More Synonyms

Density	1.5±0.1 g/cm3
Boiling Point	362.5±35.0 °C at 760 mmHg
Molecular Formula	C₈H₈O₄
Molecular Weight	168.147
Flash Point	167.0±26.0 °C
Exact Mass	168.042252
PSA	52.60000
LogP	-0.85
Vapour Pressure	0.0±0.8 mmHg at 25°C
Index of Refraction	1.550
InChIKey	JAABVEXCGCXWRR-UHFFFAOYSA-N
SMILES	O=C1OC(=O)C2C3CCC(O3)C12

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RN8300000

CHEMICAL NAME :: 7-Oxabicyclo(2.2.1)heptane-2,3-dicarboxylic anhydride

CAS REGISTRY NUMBER :: 5442-12-6

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C8-H8-O4

MOLECULAR WEIGHT :: 168.16

WISWESSER LINE NOTATION :: T C555 A AO DVOVTJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 10 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#05066

Hazard Codes	Xi
WGK Germany	3
RTECS	RN8400000
HS Code	2942000000

3,6-oxo-1,2,3,6...

CAS#:5426-09-5

~98%

Norcantharidin

CAS#:5442-12-6

Literature: THE CHINESE UNIVERSITY OF HONG KONG Patent: EP1749831 A1, 2007 ; Location in patent: Page/Page column 5; 6 ;

endo-7-oxabicyc...

CAS#:28871-63-8

~99%

Norcantharidin

CAS#:5442-12-6

Literature: Salvati, Mark E.; Mitt, Toomas; Patel, Ramesh N.; Hanson, Ronald L.; Brzozowski, David; Goswami, Animesh; Chu, Linda Nga Hoong; Li, Wen-sen; Simpson, James H.; Totleben, Michael J.; He, Weixuan Patent: US2005/119228 A1, 2005 ; US 20050119228 A1

Precursor 2
CAS#:5426-09-5 3,6-oxo-1,2,3,6... CAS#:28871-63-8 endo-7-oxabicyc...
DownStream 3
CAS#:129-67-9 Demethylcanthar... CAS#:16131-62-7 2-(6-ethoxy-1,3... CAS#:16131-73-0 2-(1,3-thiazol-...