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129-03-3

Basic Information
CAS No.: 129-03-3
Name: Cyproheptadine
Article Data: 10
Molecular Structure:
Molecular Structure of 129-03-3 (Cyproheptadine)
Formula: C21H21 N
Molecular Weight: 287.404
Synonyms: 1-Methyl-4-(5H-dibenzo[a,d]cycloheptenylidene)piperidine;1-Methyl-4-(dibenzo[a,e]cycloheptatrien-5-ylidene)piperidine;4-(5H-Dibenzo[a,d]cyclohepten-5-ylidene)-1-methylpiperidine; Cycloheptadine;Cyproheptadine; Periactinol
EINECS: 204-928-9
Density: 1.115g/cm3
Melting Point: 112.3-113.3°
Boiling Point: 440.1°Cat760mmHg
Flash Point: 194.5°C
Solubility: 317.6ug/L(22.5 oC)
Appearance: Colorless liquid, sweet, almond odor.
Safety: Poison by ingestion, intraperitoneal, subcutaneous and intravenous routes. Experimental teratogenic and reproductive effects. When heated to decomposition it emits toxic fumes of NOx.
PSA: 3.24000
LogP: 5.43780
Synthetic route
3967-32-6

5-(1-methyl-4-piperidyl)-5H-dibenzocyclohepten-5-ol

129-03-3

cyproheptadine

Conditions
ConditionsYield
With formic acid at 100℃; for 2h;99%
With hydrogenchloride; acetic acid at 120℃; for 2h;83%
With formic acid for 1h; Heating; Yield given;
121138-82-7

ethyl 4-(5H-dibenzocyclohepten-5-ylidene)-1-piperidinecarboxylate

129-03-3

cyproheptadine

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran for 2h; Heating; Yield given;
63463-36-5

(1-methyl-4-piperidyl)magnesium chloride

129-03-3

cyproheptadine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 76 percent / tetrahydrofuran / 70 °C
2: 83 percent / HOAc, conc. HCl / 2 h / 120 °C
View Scheme
2222-33-5

dibenzosuberenon

129-03-3

cyproheptadine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 76 percent / tetrahydrofuran / 70 °C
2: 83 percent / HOAc, conc. HCl / 2 h / 120 °C
View Scheme
Multi-step reaction with 2 steps
1: 60 percent / TiCl3 / 1,2-dimethoxy-ethane
2: LiAlH4 / tetrahydrofuran / 2 h / Heating
View Scheme
29976-53-2

N-ethoxycarbonyl-4-piperidone

129-03-3

cyproheptadine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 60 percent / TiCl3 / 1,2-dimethoxy-ethane
2: LiAlH4 / tetrahydrofuran / 2 h / Heating
View Scheme
129-03-3

cyproheptadine

541-41-3

chloroformic acid ethyl ester

121138-82-7

ethyl 4-(5H-dibenzocyclohepten-5-ylidene)-1-piperidinecarboxylate

Conditions
ConditionsYield
In toluene for 5h; Heating;94%
In hexane; toluene
In toluene for 3h; Reflux;
129-03-3

cyproheptadine

ether-pet ether

ether-pet ether

21081-07-2

4-(10,11-dihydro-5H-dibenzocyclohepten-5-ylidene)-1-methylpiperidine

Conditions
ConditionsYield
With hydrogen In ethanol; acetic acid94%
129-03-3

cyproheptadine

3972-65-4

1-bromo-4-tert-butylbenzene

C31H33N

Conditions
ConditionsYield
With PdCl(1,4-bis(diphenylphosphino)butane)(C3H5); potassium acetate In N,N-dimethyl acetamide at 150℃; for 48h; regioselective reaction;72%
129-03-3

cyproheptadine

591-17-3

meta-bromotoluene

C28H27N

Conditions
ConditionsYield
With PdCl(1,4-bis(diphenylphosphino)butane)(C3H5); potassium acetate In N,N-dimethyl acetamide at 150℃; for 48h; regioselective reaction;63%
129-03-3

cyproheptadine

95-46-5

2-methylphenyl bromide

C28H27N

Conditions
ConditionsYield
With PdCl(1,4-bis(diphenylphosphino)butane)(C3H5); potassium acetate In N,N-dimethyl acetamide at 150℃; for 48h; regioselective reaction;55%
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    Cyproheptadine Basic information Product Name: Cyproheptadine Synonyms: 1-Methyl-4-(5H-dibenzo[a,d]cycloheptenylidene)piperidine;Cypoheptadine;Cyproheptadiene;Dronactin;Eiproheptadine;MK 141;Periactin;Per

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Chemistry

Product Name: Cyproheptadine  
CAS: 129-03-3
Formula: C21H21N
Molecular Weight: 287.4
Molecular Structure of Cyproheptadine (CAS NO.129-03-3):

Density: 1.115 g/cm
Flash Point: 194.5 °C
Boiling Point: 440.1 °C at 760 mmHg   
Index of Refraction: 1.629 
Molar Refractivity: 91.59 cm
Molar Volume: 257.5 cm3 
Polarizability: 36.31×10-24cm
Surface Tension: 45.6 dyne/cm 
Enthalpy of Vaporization: 69.72 kJ/mol 
Vapour Pressure: 6.03E-08 mmHg at 25°C 
Water Solubility: 1.135(mg/L) at 25°C

Toxicity Data With Reference

1.    

orl-rat LD50:295 mg/kg

    27ZQAG    Psychotropic Drugs and Related Compounds E. Usdin andD.H. Efron,2nd ed.,Washington, DC.: 1972,69.
2.    

ipr-rat LD50:52 mg/kg

    27ZQAG    Psychotropic Drugs and Related Compounds E. Usdin andD.H. Efron,2nd ed.,Washington, DC.: 1972,69.
3.    

orl-mus LD50:106 mg/kg

    ARZNAD    Arzneimittel-Forschung. Drug Research. 25 (1975),1723.
4.    

scu-mus LD50:107 mg/kg

    27ZQAG    Psychotropic Drugs and Related Compounds E. Usdin andD.H. Efron,2nd ed.,Washington, DC.: 1972,69.
5.    

orl-dog LDLo:50 mg/kg

    27ZIAQ    Drug Dosages in Laboratory Animals-A Handbook C.D. Barnes andL.G. Eltherington,Berkeley, CA.: Univ. of California Press,1973,82.
6.    

ivn-rbt LDLo:3500 µg/kg

    27ZQAG    Psychotropic Drugs and Related Compounds E. Usdin andD.H. Efron,2nd ed.,Washington, DC.: 1972,69.

Consensus Reports

EPA Genetic Toxicology Program.

Safety Profile

Poison by ingestion, intraperitoneal, subcutaneous and intravenous routes. Experimental teratogenic and reproductive effects. When heated to decomposition it emits toxic fumes of NOx.
Safety Information about Cyproheptadine (CAS NO.129-03-3):
HS Code: 29143900
 

Specification

  The chemical synonyms of Cyproheptadine (CAS NO.129-03-3) are 1-Methyl-4-(5-dibenzo(a,e)cycloheptatrienylidene)piperidine ; 1-Methyl-4-(5H-dibenzo(a,d)cycloheptenylidene)piperidine ; 4-(5-Dibenzo(a,d)cyclohepten-5-ylidine)-1-methylpiperidine ; 4-(5H-Dibenzo(a,d)cyclohepten-5-ylidene)-1-methylpiperidene ; 4-(5H-Dibenzo(a,d)cyclohepten-5-ylidene)-1-methylpiperidine ; 5-(1-Methylpiperidylidene-4)-5H-dibenzo(a,d)cyclopheptene ; 5-20-08-00500 (Beilstein Handbook Reference) ; BRN 1685976 ; CCRIS 5232 ; Ciproheptadina ; Ciproheptadina [INN-Spanish] ; Cyproheptadine ; Cyproheptadinum ; Cyproheptadinum [INN-Latin] ; Dronactin ; EINECS 204-928-9 ; Eiproheptadine ; HSDB 3048 ; MK 141 ; Periactin ; Periactinol ; UNII-2YHB6175DO .