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56-25-7

Basic Information
CAS No.: 56-25-7
Name: 4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-3a,7a-dimethyl-, (3aR,4S,7R,7aS)-rel-
Molecular Structure:
Molecular Structure of 56-25-7 (4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-3a,7a-dimethyl-, (3aR,4S,7R,7aS)-rel-)
Formula: C10H12O4
Molecular Weight: 196.22
Synonyms: 4,7-Epoxyisobenzofuran-1,3-dione,hexahydro-3a,7a-dimethyl-, (3aa,4b,7b,7aa)-;7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylicanhydride, 2,3-dimethyl- (8CI);Cantharidin (6CI,7CI);1,2-Dimethyl-3,6-epoxyperhydrophthalic anhydride;Cantharidine;Cantharone;Hexahydro-3a,7a-dimethyl-4,7-epoxyisobenzofuran-1,3-dione;Kantaridin;NSC 61805;
EINECS: 200-263-3
Density: 1.362 g/cm3
Melting Point: 215-217 °C(lit.)
Boiling Point: 326.869 °C at 760 mmHg
Flash Point: 146.137 °C
Solubility: 30mg/L(20 oC)
Appearance: white to light yellow crystal powder
Hazard Symbols: ToxicT, VeryT+
Risk Codes: 28-36/37/38-38-37-36-23/24/25
Safety: 53-45-36/37/39
Transport Information: UN 2811 6.1/PG 1
PSA: 52.60000
LogP: 0.64360
Synthetic route
75532-25-1

2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride

56-25-7

cantharidin

Conditions
ConditionsYield
Stage #1: furan; 2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride With 1-butyl-3-methylimidazolium Tetrafluoroborate at 50℃; for 19h;
Stage #2: In ethyl acetate for 4h; Reagent/catalyst; Temperature; Reflux;
90%
75538-64-6

C10H10O4S

56-25-7

cantharidin

Conditions
ConditionsYield
With hydrogen In ethyl acetate under 760.051 Torr; Reflux;59%
With hydrogen In ethyl acetate at 50℃; under 1551.49 - 2585.81 Torr; for 20h;17%
With nickel In ethyl acetate Heating;
75532-25-1

2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride

A

80558-50-5

epi-catharidin

B

56-25-7

cantharidin

Conditions
ConditionsYield
nickel 1.) 7000 bar, 24 h, 2.) ethyl acetate, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given;
1,2t-dimethyl-3,6-dioxo-cyclohexane-1r,2c-dicarboxylic acid diethyl ester

1,2t-dimethyl-3,6-dioxo-cyclohexane-1r,2c-dicarboxylic acid diethyl ester

56-25-7

cantharidin

Conditions
ConditionsYield
With aluminum isopropoxide; isopropyl alcohol Behandeln des Reaktionsprodukts mit konz. Schwefelsaeure;
1-<(Ξ)-benzylidene>-3a,7a-dimethyl-(3ar,7ac)-3a,4,5,6,7,7a-hexahydro-4t,7t-epoxido-indene

1-<(Ξ)-benzylidene>-3a,7a-dimethyl-(3ar,7ac)-3a,4,5,6,7,7a-hexahydro-4t,7t-epoxido-indene

56-25-7

cantharidin

Conditions
ConditionsYield
With ozone; ethyl acetate at -40℃; Erhitzen des Reaktionsprodukts mit Essigsaeure und wss. Wasserstoffperoxid;
7647-01-0

hydrogenchloride

2-methoxy-3a,7a-dimethyl-hexahydro-4,7-epoxido-isoindole-1,3-dione

56-25-7

cantharidin

Conditions
ConditionsYield
at 150℃; im Rohr;

(+/-)-1-((Ξ)-benzylidene)-3a,7a-dimethyl-(3ar,7ac)-3a,4,5,6,7,7a-hexahydro-4t,7t-epoxido-indene

141-78-6

ethyl acetate

56-25-7

cantharidin

Conditions
ConditionsYield
at -40℃; Erhitzen des Reaktionsprodukts mit Essigsaeure und wss. Wasserstoffperoxid;
cantharidene

cantharidene

56-25-7

cantharidin

7647-01-0

hydrogenchloride

853200-58-5

2-hydroxy-3a,7a-dimethyl-hexahydro-4,7-epoxido-isoindole-1,3-dione

A

7803-49-8

hydroxylamine

B

56-25-7

cantharidin

Conditions
ConditionsYield
at 150℃; im Rohr;

(-)-2-bromo-1,8-dimethyl-7-oxo-6-oxa-bicyclo[3.2.1]octane-8-carboxylic acid

A

56-25-7

cantharidin

B

dextrorotatory cantharic acid

dextrorotatory cantharic acid

C

<3.6-dibromo-1.2-dimethyl-hexahydrophthalic acid >-anhydride

<3.6-dibromo-1.2-dimethyl-hexahydrophthalic acid >-anhydride

Conditions
ConditionsYield
at 215 - 225℃;
10035-10-6, 12258-64-9

hydrogen bromide

64-19-7

acetic acid

(+)-2-bromo-1,8-dimethyl-7-oxo-6-oxa-bicyclo[3.2.1]octane-8-carboxylic acid

A

56-25-7

cantharidin

B

<3.6-dibromo-1.2-dimethyl-hexahydrophthalic acid >-anhydride

<3.6-dibromo-1.2-dimethyl-hexahydrophthalic acid >-anhydride

C

levorotatory cantharic acid

levorotatory cantharic acid

Conditions
ConditionsYield
at 150 - 155℃;
75532-26-2

C10H8O4S

A

56-25-7

cantharidin

B

concentrated aqueous methylamine solution

concentrated aqueous methylamine solution

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: H2 / 10percent Pd-C
2: Raney Ni / ethyl acetate / Heating
View Scheme
75532-26-2

C10H8O4S

56-25-7

cantharidin

Conditions
ConditionsYield
With hydrogen In water; ethyl acetate for 4h; Reflux;50 mg
Multi-step reaction with 2 steps
1: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
2: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
155251-30-2

3-cyano-3-hydroxy-tetrahydrothiophene-4-carboxylic acid methyl ester

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: pyridine; trichlorophosphate / benzene / 5 h / 20 - 52 °C
2.1: hydrogenchloride; water; acetic acid / Reflux
3.1: thionyl chloride / Reflux
4.1: 1-butyl-3-methylimidazolium Tetrafluoroborate / 19 h / 50 °C
4.2: Raney-Ni / 4 h / Reflux
View Scheme
2689-68-1

methyl 4-oxotetrahydrothiophene-3-carboxylate

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: sodium hydrogensulfite / water; methanol / 16 h / 20 °C / pH 7 - 8
2.1: pyridine; trichlorophosphate / benzene / 5 h / 20 - 52 °C
3.1: hydrogenchloride; water; acetic acid / Reflux
4.1: thionyl chloride / Reflux
5.1: 1-butyl-3-methylimidazolium Tetrafluoroborate / 19 h / 50 °C
5.2: Raney-Ni / 4 h / Reflux
View Scheme
Multi-step reaction with 7 steps
1: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -30 - -20 °C / Inert atmosphere
2: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr
3: sodium hydroxide; water / tetrahydrofuran / 2.5 h
4: acetyl chloride / toluene / 4 h / Reflux
5: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
6: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
7: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
96307-21-0

3-cyano-2,5-dihydrothiophene-4-carboxylic acid methyl ester

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: hydrogenchloride; water; acetic acid / Reflux
2.1: thionyl chloride / Reflux
3.1: 1-butyl-3-methylimidazolium Tetrafluoroborate / 19 h / 50 °C
3.2: Raney-Ni / 4 h / Reflux
View Scheme
7400-45-5

dimethyl-3-thiaadipate

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1: methanol; lithium / 7 h / 20 °C / Inert atmosphere; Reflux
2: hydrogenchloride / water / pH Ca. 5
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -30 - -20 °C / Inert atmosphere
4: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr
5: sodium hydroxide; water / tetrahydrofuran / 2.5 h
6: acetyl chloride / toluene / 4 h / Reflux
7: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
8: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
9: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme

C6H7O3S(1-)*Li(1+)

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: hydrogenchloride / water / pH Ca. 5
2: N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -30 - -20 °C / Inert atmosphere
3: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr
4: sodium hydroxide; water / tetrahydrofuran / 2.5 h
5: acetyl chloride / toluene / 4 h / Reflux
6: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
7: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
8: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
170945-21-8

methyl 4-{[(trifluoromethyl)sulfonyl]oxy}-2,5-dihydrothiophene-3-carboxylate

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: tris-(dibenzylideneacetone)dipalladium(0); 1,1'-bis-(diphenylphosphino)ferrocene / N,N-dimethyl-formamide / 24 h / 50 °C / 2068.65 Torr
2: sodium hydroxide; water / tetrahydrofuran / 2.5 h
3: acetyl chloride / toluene / 4 h / Reflux
4: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
5: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
6: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
20946-32-1

3,4-dimethyl 2,5-dihydrothiophene-3,4-dicarboxylate

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: sodium hydroxide; water / tetrahydrofuran / 2.5 h
2: acetyl chloride / toluene / 4 h / Reflux
3: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
4: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
5: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
20688-07-7

2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: acetyl chloride / toluene / 4 h / Reflux
2: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
3: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
4: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
75532-25-1

2,2,4,4-tetrahydrothiophene-3,4-dicarboxylic acid anhydride

56-25-7

cantharidin

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 1-methyl-pyrrolidin-2-one / 48 h / 45 °C
2: hydrogen; 20 mol% Pd/C / ethyl acetate / 760.05 Torr
3: hydrogen / ethyl acetate / 760.05 Torr / Reflux
View Scheme
765-30-0

Cyclopropylamine

56-25-7

cantharidin

(1S,2R,6S,7R)-4-Cyclopropyl-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;96%
74-89-5

methylamine

56-25-7

cantharidin

7-oxabicyclo<2.2.1>heptane-2,3-dimethyl-2,3-dicarboxylic acid methylimide

Conditions
ConditionsYield
In water 1.) reflux, 4 h, 2.) 200 deg C, 1 h;93%
120-20-7

2-(3,4-dimethoxyphenyl)-ethylamine

56-25-7

cantharidin

(1R,2S,6R,7S)-4-[2-(3,4-Dimethoxy-phenyl)-ethyl]-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;93%
608-07-1

2-(5-methoxyindol-3-yl)ethylamine

56-25-7

cantharidin

(1R,2S,6R,7S)-4-[2-(5-Methoxy-1H-indol-3-yl)-ethyl]-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;92%
13650-49-2

Nδ-(tert-butoxycarbonyl)-L-ornithine

56-25-7

cantharidin

849355-19-7

(S)-5-tert-Butoxycarbonylamino-2-((1S,2R,6S,7R)-2,6-dimethyl-3,5-dioxo-10-oxa-4-aza-tricyclo[5.2.1.02,6]dec-4-yl)-pentanoic acid

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 48h;92%
56-25-7

cantharidin

76970-77-9

7-oxabicyclo<2.2.1>heptane-2,3-dimethyl-2,3-dicarboxylic acid imide

Conditions
ConditionsYield
With ammonium hydroxide at 180℃; for 2h;91%
With ammonium hydroxide 1.) reflux, 2 h, 2.) 200 deg C, 1 h;66%
(i) aq. NH3, (ii) (heating); Multistep reaction;
With ammonia
17467-15-1

2-amino-4-phenyl-1,3,5-thiadiazole

56-25-7

cantharidin

N-[5-(3-phenyl-1,2,4-thiadiazolyl)]cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;91%
107-11-9

1-amino-2-propene

56-25-7

cantharidin

(1R,2S,6R,7S)-4-Allyl-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;90%
7305-71-7

5-methyl-2-thiazol-2-amine

56-25-7

cantharidin

N-[2-(5-methylthiazolyl)]cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;89%
110-60-1

1,4-diaminobutane

56-25-7

cantharidin

bis[(1S,2R,3S,6R)-1,2-dimethyl-3,6-epoxycyclohexane-1,2-dicarboximido]-tetramethylene

Conditions
ConditionsYield
With triethylamine In methanol at 180℃; for 24h;89%
769-92-6

4-tert-Butylaniline

56-25-7

cantharidin

C20H25NO3

Conditions
ConditionsYield
With acetic acid Sealed tube;89%
51-67-2

tyrosamine

56-25-7

cantharidin

(1R,2S,6R,7S)-4-[2-(4-Hydroxy-phenyl)-ethyl]-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;88%
96-50-4

2-thiazolylamine

56-25-7

cantharidin

N-(2-thiazolyl)cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;87%
1603-91-4

4-methylthiazol-2-ylamine

56-25-7

cantharidin

N-[2-(4-methylthiazolyl)]cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;86%
462-94-2

1,5-diaminopentane

56-25-7

cantharidin

bis[(1S,2R,3S,6R)-1,2-dimethyl-3,6-epoxycyclohexane-1,2-dicarboximido]-pentamethylene

Conditions
ConditionsYield
With triethylamine In methanol at 180℃; for 24h;86%
109-76-2

Trimethylenediamine

56-25-7

cantharidin

bis[(1S,2R,3S,6R)-1,2-dimethyl-3,6-epoxycyclohexane-1,2-dicarboximido]-trimethylene

Conditions
ConditionsYield
With triethylamine In methanol at 180℃; for 24h;85%
1484-85-1

3,4-methylenedioxyphenylethylamine

56-25-7

cantharidin

(1R,2S,6R,7S)-4-(2-Benzo[1,3]dioxol-5-yl-ethyl)-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;84%
2706-56-1

2-(aminoethyl)pyridine

56-25-7

cantharidin

(1S,2R,6S,7R)-2,6-Dimethyl-4-(2-pyridin-2-yl-ethyl)-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;83%
6628-77-9

6-methoxy-pyridin-3-ylamine

56-25-7

cantharidin

N-(6-methoxypyridyl-3)cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;83%
141-43-5

ethanolamine

56-25-7

cantharidin

N-hydroxyethyl exo-2,3-dimethyl-7-oxabicyclo[2.2.1]heptane-2,3-dicarboximide

Conditions
ConditionsYield
In ethanol at 20℃; for 2.5h; Acylation; Heating;80.1%
16867-03-1

2-amino-3-hydroxypyridine

56-25-7

cantharidin

N-(3-hydroxypyridyl-2)cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;79%
With triethylamine In toluene at 200℃; for 2h;52%
99-88-7

4-Isopropylaniline

56-25-7

cantharidin

C19H23NO3

Conditions
ConditionsYield
With acetic acid at 135℃; for 12h; Sealed tube;79%
61-54-1

tryptamine

56-25-7

cantharidin

(1R,2S,6R,7S)-4-[2-(1H-Indol-3-yl)-ethyl]-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;77%
22013-33-8

6-amino-3,4-benzodioxane

56-25-7

cantharidin

3,4-diethyleneoxyphenylcantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;76%
110-60-1

1,4-diaminobutane

56-25-7

cantharidin

(1S,2R,6S,7R)-4-(4-Amino-butyl)-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;74%
1747-60-0

6-methoxybenzothiazol-2-ylamine

56-25-7

cantharidin

4-(6-methoxy-benzothiazol-2-yl)-2,6-dimethyl-10-oxa-4-aza-tricyclo[5.2.1.02,6]decane-3,5-dione

Conditions
ConditionsYield
With triethylamine In toluene at 180℃; for 5h;73%
5407-87-4

2-Amino-4,6-dimethylpyridine

56-25-7

cantharidin

N-(4,6-dimethylpyridyl-2)cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;72%
With triethylamine In toluene at 200℃; for 2h;62%
121-66-4

2-amino-5-nitro-1,3-thiazole

56-25-7

cantharidin

N-[2-(5-nitrothiazolyl)]cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;69%
56-25-7

cantharidin

6-methyl-4-phenyl-benzothiazol-2-ylamine

N-[2-(4-phenyl-6-methylbenzothiazolyl)]cantharidinimide

Conditions
ConditionsYield
With triethylamine In toluene at 200℃; for 2h;69%
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Chemistry

Product Name: Cantharidin
Synonyms: (2R,6S)-2,6-Dimethyl-4,10-dioxatricyclo[5.2.1.0~2,6~]decan-3,5-dion ; (2R,6S)-2,6-Dimethyl-4,10-dioxatricyclo[5.2.1.0~2,6~]decane-3,5-dione ; (2R,6S)-2,6-Diméthyl-4,10-dioxatricyclo[5.2.1.0~2,6~]décane-3,5-dione ; (3aR,7aS)-3a,7a-Dimethylhexahydro-4,7-epoxy-2-benzofuran-1,3-dione
Molecular Structure of Cantharidin (CAS NO.56-25-7) :
Molecular Formula of Cantharidin (CAS NO.56-25-7) : C10H12O4
Molecular Weight of Cantharidin (CAS NO.56-25-7) : 196.20
CAS NO: 56-25-7
EINECS: 200-263-3
Product Categories: chiral
Mol File: 56-25-7.mol
Merck : 13,1757
Index of Refraction: 1.547
Surface Tension: 49.2 dyne/cm
Density: 1.362 g/cm3
Flash Point: 146.2 °C
Enthalpy of Vaporization: 56.91 kJ/mol
Boiling Point: 326.9 °C at 760 mmHg
Vapour Pressure: 0.00021 mmHg at 25°C
Melting point 215-217 ºC
Appearance:white to light yellow crystal powder

History

Cantharidin was first isolated by Pierre Robiquet in 1810. It is an odorless and colorless solid at room temperature. It is secreted by the male blister beetle and given to the female during the mating. Afterwards the female beetle will cover its eggs with it as a defense against predators. The complete mechanism of the biosynthesis is currently unknown. If cantharidin is ingested, it severely irritates the urinary tract as it is excreted, causing swelling of the genitalia. This can cause a harmful condition known as priapism in men, where an erection lasts more than about four hours.

Uses

1. Cantharidin (CAS NO.56-25-7) is used in biochemical research, clinically as antineoplastic agents, mainly for primary liver cancer, It is often used in conjunction with other antineoplastic agents.
2. Cantharidin (CAS NO.56-25-7) is used as hydroxycanthayridimide intermediates.

Production

Raw materials Magnesium stearate -->MAGNESIUM TRISILICATE-->Oils, animal, mixed with vegetable oil Me esters, sulfurized -->Pioneer Blue Natural Rubber Latex Gloves, Size 9
 Cantharidin (CAS NO.56-25-7) can be extracted from the insect cantharis body,also can be chemically synthesized.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LDLo oral 310mg/kg (310mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.
chicken LDLo subcutaneous 75mg/kg (75mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.
dog LDLo oral 50mg/kg (50mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.
frog LDLo oral 7273mg/kg (7273mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.
human LDLo oral 428ug/kg (0.428mg/kg)   "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969Vol. -, Pg. 646, 1969.
mammal (species unspecified) LD50 intraperitoneal 1710ug/kg (1.71mg/kg)   "Zhongliu Yanjiu" Cancer Review, Yu, R., et al., eds., Shanghai Science/Technology Publisher,Peop. Rep. China, 1994Vol. -, Pg. 183, 1994.
mammal (species unspecified) LDLo oral 75mg/kg (75mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.
mammal (species unspecified) LDLo unreported 50mg/kg (50mg/kg)   Zhongcaoyao. Chinese Traditional and Herbal Medicine. Vol. 20, Pg. 135, 1989.
mouse LD50 intraperitoneal 1mg/kg (1mg/kg)   Journal of Agricultural and Food Chemistry. Vol. 35, Pg. 823, 1987.
pigeon LDLo oral 32mg/kg (32mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.
rabbit LDLo oral 20mg/kg (20mg/kg) CARDIAC: ARRHYTHMIAS (INCLUDING CHANGES IN CONDUCTION) Toxicon. Vol. 23, Pg. 36, 1985.
rabbit LDLo subcutaneous 1mg/kg (1mg/kg)   "Ueber die Wirkung Verschiedener Gifte Auf Vogel, Dissertation," Forchheimer, L., Pharmakologischen Institut der Universitat Wurzburg, Fed. Rep. Ger., 1931Vol. -, Pg. -, 1931.

Safety Profile

Hazard Codes VeryT+T
Risk Statements 28-36/37/38-23/24/25
 R28:Very toxic if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
Safety Statements 53-45-36/37/39
S53:Avoid exposure - obtain special instructions before use. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
RIDADR UN 2811 6.1/PG 1
WGK Germany 3
RTECS RN8575000
HazardClass 6.1(a)
PackingGroup I

Specification

1.General Description: Brown to black powder or plates or scales. Formerly used as a counterirritant and vesicant. Used for the removal of warts. Used as an experimental anti tumor agent. Active ingredient in spanish fly, a reputed aphrodisiac.
2.Reactivity Profile: Organic anhydrides, such as Cantharidin, are incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.
3.Health Hazard :Cantharidin is classified as super toxic. Probable oral lethal dose in humans is less than 5 mg/kg or a taste of less than 7 drops for a 70 kg (150 lb.) person. It is very toxic by absorption through skin.
4.Fire Hazard: When heated to decomposition Cantharidin emits acrid smoke and irritating fumes.