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20850-43-5

Basic Information
CAS No.: 20850-43-5
Name: Piperonyl chloride
Article Data: 53
Molecular Structure:
Molecular Structure of 20850-43-5 (Piperonyl chloride)
Formula: C8H7ClO2
Molecular Weight: 170.595
Synonyms: Toluene, a-chloro-3,4-(methylenedioxy)-(6CI,8CI);3,4-(Methylenedioxy)benzyl chloride;4-Chloromethyl-1,2-methylenedioxybenzene;5-(Chloromethyl)-1,3-benzodioxole;5-(Chloromethyl)benzodioxole;Benzo[1,3]dioxol-5-ylmethyl chloride;NSC 127686;Piperonyl chloride;
EINECS: 244-081-2
Density: 1.33 g/cm3
Melting Point: 20.5°C
Boiling Point: 257.387 °C at 760 mmHg
Flash Point: 115.921 °C
Appearance: Colorless liquid.
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36/37/39
PSA: 18.46000
LogP: 2.15410
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  • 1,3-Benzodioxole,5-(chloromethyl)-

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    1,3-Benzodioxole,5-(chloromethyl)-

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    1,3-Benzodioxole,5-(chloromethyl)-

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  • Piperonyl chloride

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  • Acmec Piperonyl Chloride 5g

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    Acmec Piperonyl Chloride 5g

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    Piperonyl chloride

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  • Piperonyl chloride / 20850-43-5

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    Piperonyl chloride / 20850-43-5 3,4-Methylenedioxybenzyl chloride; 5-(Chloromethyl)-1,3-benzodioxole Application:20850-43-5

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Chemistry

The MF of 1,3-Benzodioxole, 5- (chloromethyl)- (20850-43-5) is C8H7ClO2.

                                         
The MW of 1,3-Benzodioxole, 5- (chloromethyl)- (20850-43-5) is 170.59.
Synonyms of 1,3-Benzodioxole, 5- (chloromethyl)- (20850-43-5): 3,4-(Methylenedioxy)benzyl chloride ; 4-Chloromethyl-1,2-methylenedioxybenzene ; 5-(Chloromethyl)-1,3-benzodioxole ; Piperonyl chloride ; Toluene, .alpha.-chloro-3,4-(methylenedioxy)-
Sensitive: Moisture Sensitive/Lachrymatory
Solubility in water: Insoluble 
Appearance: Colorless liquid
Index of Refraction: 1.571 
EINECS: 244-081-2
Density: 1.329 g/ml 
Flash Point: 115.9 °C 
Boiling Point: 257.4 °C
Melting Point: 20.5 °C

Uses

   1,3-Benzodioxole, 5- (chloromethyl)- (20850-43-5) is used as berberine hydrochloride (berberine) intermediates.

Production

With catechol and methylene chloride cyclization under alkaline conditions, generate pepper rings, and then with the trimer of formaldehyde, hydrochloric acid, chlorine, after methylation of the products obtained.

Safety Profile

Safety information of 1,3-Benzodioxole, 5- (chloromethyl)- (20850-43-5):
Hazard Codes  Xi
Risk Statements 
36/37/38  Irritating to eyes, respiratory system and skin
Safety Statements 
26  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39  Wear suitable protective clothing, gloves and eye/face protection