6412-87-9

Basic information

• Product Name: 5 6-METHYLENEDIOXY-1-INDANONE 97
• Synonyms: 5 6-METHYLENEDIOXY-1-INDANONE 97;Nsc65075;5,6-Methylenedioxy-1-indanone 97%;3-(benzo[d][1,3]dioxol-5-yl)propanoic acid;5,6-dihydrocyclopenta[f][1,3]benzodioxol-7-one
• CAS NO: 6412-87-9
• Molecular Formula: C₁₀H₈O₃
• Molecular Weight: 176.17
• Mol File: 6412-87-9.mol
• Article Data: 6

Chemical Properties

• Melting Point: 162-166 °C
• Boiling Point: 344.9 °C at 760 mmHg
• Flash Point: 153.6 °C
• Appearance: /
• Density: 1.395 g/cm³
• Vapor Pressure: 6.38E-05mmHg at 25°C
• Refractive Index: 1.626
• Storage Temp.: Inert atmosphere,Room Temperature
• CAS DataBase Reference: 5 6-METHYLENEDIOXY-1-INDANONE 97(CAS DataBase Reference)
• NIST Chemistry Reference: 5 6-METHYLENEDIOXY-1-INDANONE 97(6412-87-9)
• EPA Substance Registry System: 5 6-METHYLENEDIOXY-1-INDANONE 97(6412-87-9)

Safety Data

• Hazard Codes: Xn
• Statements: 22
• WGK Germany: 2
• Hazardous Substances Data: 6412-87-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H8O3/c11-8-2-1-6-3-9-10(4-7(6)8)13-5-12-9/h3-4H,1-2,5H2

Synthetic route

3-benzo[1,3]dioxol-5-yl-propionyl chloride (68996-81-6) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With tin(IV) chloride Friedel-Crafts acylation;	95%
With tin(IV) chloride In dichloromethane 1.) 0 deg C, 10 min, 2.) 0.5 h;	84%
bei der Destillation unter vermindertem Druck;
With aluminum (III) chloride In dichloromethane at 20℃; for 2h;

2-ethenyl-4,5-(methylenedioxy)benzaldehyde (3811-52-7) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With acetic acid; L-proline at 120℃; for 24h; Green chemistry;	81%
With ethanol; nickel

tert-butyl((6-ethynylbenzo[d][1,3]dioxol-5-yl)methoxy)dimethylsilane (937792-71-7) → tert-butyl-(5H-indeno[5,6-d][1,3]dioxol-5-yloxy)dimethylsilane + 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
TpRuPPh3(MeCN)2SbF6 In toluene at 105℃; for 48h;	A 8% B 61%
TpRuPPh3(MeCN)2SbF6 In toluene at 105℃; for 48h;	A 31% B 39%

tert-butyl-(5H-indeno[5,6-d][1,3]dioxol-5-yloxy)dimethylsilane → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
TpRuPPh3(MeCN)2SbF6 In toluene at 105℃; for 24h;	53%

5-chloro-6-vinylbenzo[1,3]dioxole + molybdenum hexacarbonyl → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With pyridine; tetrabutyl-ammonium chloride; tri tert-butylphosphoniumtetrafluoroborate; trans-di(μ-acetato)bis[o-(di-o-tolylphosphino)benzyl]dipalladium(II) In 1,4-dioxane at 170℃; for 0.5h; microwave irradiation;	26%

3-(1,3 benzodioxol-5-yl)propionic acid (2815-95-4) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With phosphorus pentachloride; benzene anschliessendes Behandeln mit Zinn(IV)-chlorid;
Multi-step reaction with 2 steps 1: thionyl chloride / benzene / 3 h / Heating 2: 84 percent / SnCl4 / CH2Cl2 / 1.) 0 deg C, 10 min, 2.) 0.5 h View Scheme
Multi-step reaction with 2 steps 1: phosphorus trichloride 2: bei der Destillation unter vermindertem Druck View Scheme
Multi-step reaction with 2 steps 1: oxalyl dichloride / dichloromethane; N,N-dimethyl-formamide / 20 °C 2: aluminum (III) chloride / dichloromethane / 2 h / 20 °C View Scheme
Multi-step reaction with 2 steps 1: oxalyl dichloride / dichloromethane 2: tin(IV) chloride View Scheme

3,4-methylenedioxy-trans-cinnamic acid (2373-80-0) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 2 steps 1: Raney nickel; dioxane / 80 °C / Hydrogenation 2: benzene; phosphorus (V)-chloride / anschliessendes Behandeln mit Zinn(IV)-chlorid View Scheme

piperonal (120-57-0) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 4 steps 1: piperidine; pyridine 2: 10% palladium on activated charcoal; hydrogen 3: oxalyl dichloride / dichloromethane 4: tin(IV) chloride View Scheme

3,4-(methylenedioxy)cinnamic acid (2373-80-0) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 3 steps 1: 10% palladium on activated charcoal; hydrogen 2: oxalyl dichloride / dichloromethane 3: tin(IV) chloride View Scheme

piperidine + 5,6-methylenedioxy-1-indanone (6412-87-9) → 1-(5,6-methylenedioxy-1H-inden-3-yl)piperidine

Conditions	Yield
With titanium tetrachloride In toluene at -10 - 20℃; for 73h; Inert atmosphere;	100%
With titanium tetrachloride In toluene at -10 - 20℃; Inert atmosphere;	99%

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-5,6,7-trimethoxyquinoline-3-carboxaldehyde (68236-25-9) → 6-[1-(2-Chloro-5,6,7-trimethoxy-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium hydroxide In methanol at 20℃; for 12h;	96%

5,6-methylenedioxy-1-indanone (6412-87-9) → 2-(hydroxyimino)-5,6-(methylenedioxy)-1-indanone (38489-93-9)

Conditions	Yield
With isopentyl nitrite	90%
With hydrogenchloride; isopentyl nitrite In methanol for 1.25h;	86.9%

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-6-methoxyquinolin-3-carboxaldehyde (73568-29-3) → 6-[1-(2-Chloro-6-methoxy-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium hydroxide In methanol at 20℃; for 12h;	90%

5,6-methylenedioxy-1-indanone (6412-87-9) + 3,4-dihydroxybenzaldehyde (139-85-5) → (E)-6-(3,4-dihydroxybenzylidene)-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With hydrogenchloride In methanol for 24h; Aldol Condensation; Heating;	90%

3-benzo[1,3]dioxol-5-yl-propionyl chloride (68996-81-6) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With tin(IV) chloride Friedel-Crafts acylation;	95%
With tin(IV) chloride In dichloromethane 1.) 0 deg C, 10 min, 2.) 0.5 h;	84%
bei der Destillation unter vermindertem Druck;
With aluminum (III) chloride In dichloromethane at 20℃; for 2h;

2-ethenyl-4,5-(methylenedioxy)benzaldehyde (3811-52-7) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With acetic acid; L-proline at 120℃; for 24h; Green chemistry;	81%
With ethanol; nickel

tert-butyl((6-ethynylbenzo[d][1,3]dioxol-5-yl)methoxy)dimethylsilane (937792-71-7) → tert-butyl-(5H-indeno[5,6-d][1,3]dioxol-5-yloxy)dimethylsilane + 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
TpRuPPh3(MeCN)2SbF6 In toluene at 105℃; for 48h;	A 8% B 61%
TpRuPPh3(MeCN)2SbF6 In toluene at 105℃; for 48h;	A 31% B 39%

tert-butyl-(5H-indeno[5,6-d][1,3]dioxol-5-yloxy)dimethylsilane → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
TpRuPPh3(MeCN)2SbF6 In toluene at 105℃; for 24h;	53%

5-chloro-6-vinylbenzo[1,3]dioxole + molybdenum hexacarbonyl → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With pyridine; tetrabutyl-ammonium chloride; tri tert-butylphosphoniumtetrafluoroborate; trans-di(μ-acetato)bis[o-(di-o-tolylphosphino)benzyl]dipalladium(II) In 1,4-dioxane at 170℃; for 0.5h; microwave irradiation;	26%

3-(1,3 benzodioxol-5-yl)propionic acid (2815-95-4) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With phosphorus pentachloride; benzene anschliessendes Behandeln mit Zinn(IV)-chlorid;
Multi-step reaction with 2 steps 1: thionyl chloride / benzene / 3 h / Heating 2: 84 percent / SnCl4 / CH2Cl2 / 1.) 0 deg C, 10 min, 2.) 0.5 h View Scheme
Multi-step reaction with 2 steps 1: phosphorus trichloride 2: bei der Destillation unter vermindertem Druck View Scheme
Multi-step reaction with 2 steps 1: oxalyl dichloride / dichloromethane; N,N-dimethyl-formamide / 20 °C 2: aluminum (III) chloride / dichloromethane / 2 h / 20 °C View Scheme
Multi-step reaction with 2 steps 1: oxalyl dichloride / dichloromethane 2: tin(IV) chloride View Scheme

β-<3.4-methylenedioxy-phenyl>-propionic acid chloride → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
under 25 Torr; beim Destillieren;

β-<3.4-methylenedioxy-phenyl>-propionic acid → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With phosphorus pentachloride; Petroleum ether nachfolgende Behandlung der vom Phosphoroxychlorid befreiten Loesung mit Aluminiumchlorid;
With phosphorus pentaoxide; benzene

5-oxo-5H-thiopyrano<3,4-f>benzo<1,3>dioxole-7-carboxylic acid → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
With ethanol; nickel

3-(1,3 benzodioxol-5-yl)propionic acid (2815-95-4) + phosphorus pentachloride (10026-13-8, 874483-75-7) + petroleum ether → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Behandlung des Reaktionsprodukts mit Aluminiumchlorid;

3-(1,3 benzodioxol-5-yl)propionic acid (2815-95-4) + benzene (71-43-2) + phosphorus pentoxide → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Behandlung des Reaktionsprodukts mit Aluminiumchlorid;

ethanol (64-17-5) + 5-oxo-5H-isothiochromeno[6,7-d][1,3]dioxole-7-carboxylic acid + Raney nickel → 5,6-methylenedioxy-1-indanone (6412-87-9)

ethanol (64-17-5) + 2-ethenyl-4,5-(methylenedioxy)benzaldehyde (3811-52-7) + Raney nickel → 5,6-methylenedioxy-1-indanone (6412-87-9)

tert-butyl((6-ethynylbenzo[d][1,3]dioxol-5-yl)methoxy)dimethylsilane (937792-71-7) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 2 steps 1: 8 percent / TpRuPPh3(MeCN)2SbF6 / toluene / 48 h / 105 °C 2: 53 percent / TpRuPPh3(MeCN)2SbF6 / toluene / 24 h / 105 °C View Scheme

3,4-methylenedioxy-trans-cinnamic acid (2373-80-0) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 2 steps 1: Raney nickel; dioxane / 80 °C / Hydrogenation 2: benzene; phosphorus (V)-chloride / anschliessendes Behandeln mit Zinn(IV)-chlorid View Scheme

piperonal (120-57-0) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 4 steps 1: piperidine; pyridine 2: 10% palladium on activated charcoal; hydrogen 3: oxalyl dichloride / dichloromethane 4: tin(IV) chloride View Scheme

3,4-(methylenedioxy)cinnamic acid (2373-80-0) → 5,6-methylenedioxy-1-indanone (6412-87-9)

Conditions	Yield
Multi-step reaction with 3 steps 1: 10% palladium on activated charcoal; hydrogen 2: oxalyl dichloride / dichloromethane 3: tin(IV) chloride View Scheme

piperidine (110-89-4) + 5,6-methylenedioxy-1-indanone (6412-87-9) → 1-(5,6-methylenedioxy-1H-inden-3-yl)piperidine

Conditions	Yield
With titanium tetrachloride In toluene at -10 - 20℃; for 73h; Inert atmosphere;	100%
With titanium tetrachloride In toluene at -10 - 20℃; Inert atmosphere;	99%

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-5,6,7-trimethoxyquinoline-3-carboxaldehyde (68236-25-9) → 6-[1-(2-Chloro-5,6,7-trimethoxy-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium hydroxide In methanol at 20℃; for 12h;	96%

5,6-methylenedioxy-1-indanone (6412-87-9) → 2-(hydroxyimino)-5,6-(methylenedioxy)-1-indanone (38489-93-9)

Conditions	Yield
With isopentyl nitrite	90%
With hydrogenchloride; isopentyl nitrite In methanol for 1.25h;	86.9%

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-6-methoxyquinolin-3-carboxaldehyde (73568-29-3) → 6-[1-(2-Chloro-6-methoxy-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium hydroxide In methanol at 20℃; for 12h;	90%

5,6-methylenedioxy-1-indanone (6412-87-9) + 3,4-dihydroxybenzaldehyde (139-85-5) → (E)-6-(3,4-dihydroxybenzylidene)-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With hydrogenchloride In methanol for 24h; Aldol Condensation; Heating;	90%

5,6-methylenedioxy-1-indanone (6412-87-9) + 3,4-dihydroxy-5-nitrobenzaldehyde (116313-85-0) → (6E)-6-(3,4-dihydroxy-5-nitrobenzylidene)-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With hydrogenchloride In methanol; water Claisen-Schmidt Condensation; Reflux;	88.1%

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-8-methyl-quinoline-3-carbaldehyde (73568-26-0) → 6-[1-(2-Chloro-8-methyl-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium methylate In methanol at 20℃; Claisen-Schmidt condensation;	86%

5,6-methylenedioxy-1-indanone (6412-87-9) + isopentyl nitrite (110-46-3) → (6E)-6-hydroxyimino-5H-cyclopenta[f][1,3]benzodioxol-7-one

Conditions	Yield
With hydrogenchloride In methanol; water at 45℃; for 1.5h;	85.8%

5,6-methylenedioxy-1-indanone (6412-87-9) → 2-bromo-5,6-methylenedioxy-1-indanone (54714-55-5)

Conditions	Yield
With copper(ll) bromide In ethyl acetate for 6h; Reflux;	83%
With tetra-N-butylammonium tribromide In methanol; dichloromethane at 20℃;

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-7-methoxyquinoline-3-carbaldehyde (68236-20-4) → 6-[1-(2-Chloro-7-methoxy-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium hydroxide In methanol at 20℃; for 12h;	77%

5,6-methylenedioxy-1-indanone (6412-87-9) + carbonic acid dimethyl ester (616-38-6) → methyl 5-oxo-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxole-6-carboxylate (18959-56-3)

Conditions	Yield
With sodium hydride In paraffin oil at 90℃;	76%

5,6-methylenedioxy-1-indanone (6412-87-9) → 2-(hydroxyimino)-5,6-(methylenedioxy)-1-indanone (38489-93-9)

Conditions	Yield
With hydrogenchloride; n-Amyl nitrite In methanol; water	75%
With hydrogenchloride; n-Amyl nitrite In ethanol 1) 50 deg C, 2 h;	72%

5,6-methylenedioxy-1-indanone (6412-87-9) → N,N'-Bis-[6,7-dihydro-indeno[5,6-d][1,3]dioxol-(5E)-ylidene]-hydrazine (100556-02-3)

Conditions	Yield
With hydrazine hydrate In ethanol Heating;	68%

5,6-methylenedioxy-1-indanone (6412-87-9) + N,N-dimethyl-formamide (68-12-2, 33513-42-7) → C11H7ClO3 (1314802-46-4)

Conditions	Yield
With trichlorophosphate at 0 - 10℃; for 1h; Vilsmeier-Haack-Arnold reaction;	64%

5,6-methylenedioxy-1-indanone (6412-87-9) + 1-benzyl-4-formylpiperidine (22065-85-6) → (E)-6-((1-benzylpiperidin-4-yl)methylene)-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With Amberlyst A-26 In methanol at 20 - 50℃; for 2h; Irradiation; Green chemistry; regioselective reaction;	64%

5,6-methylenedioxy-1-indanone (6412-87-9) + 2-chloro-6,7-dimethoxy-3-quinolinecarboxaldehyde (68236-23-7) → 6-[1-(2-Chloro-6,7-dimethoxy-quinolin-3-yl)-meth-(E)-ylidene]-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sodium methylate In methanol at 20℃; Claisen-Schmidt condensation;	61%

5,6-methylenedioxy-1-indanone (6412-87-9) + phenyl isothiocyanate (103-72-0) → 6,7-methylenedioxy-N-phenyl-1,4-dihydroindeno[1,2-c]pyrazol-3-amine (1421448-21-6)

Conditions	Yield
Stage #1: 5,6-methylenedioxy-1-indanone; phenyl isothiocyanate With lithium hexamethyldisilazane In tetrahydrofuran; hexane at 20℃; for 12h; Stage #2: With hydrazine hydrate; acetic acid In tetrahydrofuran; hexane for 24h; Reflux;	48%

5,6-methylenedioxy-1-indanone (6412-87-9) + toluene-4-sulfonic acid hydrazide (1576-35-8) → C17H16N2O4S (100556-05-6)

Conditions	Yield
In ethanol Heating;	46%

5,6-methylenedioxy-1-indanone (6412-87-9) + 3-bromo-pyridine-4-carbaldehyde (70201-43-3) → (6E)-6-[(3-bromo-4-pyridyl)methylene]-5H-cyclopenta[f][1,3]-benzodioxol-7-one (1620646-37-8)

Conditions	Yield
With toluene-4-sulfonic acid In toluene for 4h; Reflux; Dean-Stark;	35%

5,6-methylenedioxy-1-indanone (6412-87-9) → 6-fluoro-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With sulfuric acid; Selectfluor In methanol at 50℃; for 48h; Inert atmosphere;	32%

5,6-methylenedioxy-1-indanone (6412-87-9) + potassium cyanide (151-50-8) → 6',7'-dihydro-spiro[imidazolidine-4,5'-indeno[5,6-d][1,3]dioxole]-2,5-dione (66892-40-8)

Conditions	Yield
With ammonium carbonate In ethanol at 110℃;	29%

formaldehyd (50-00-0) + 5,6-methylenedioxy-1-indanone (6412-87-9) + morpholin hydrochloride (10024-89-2) → 6-morpholinomethyl-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With ethanol

formaldehyd (50-00-0) + 5,6-methylenedioxy-1-indanone (6412-87-9) + piperidine hydrochloride (6091-44-7) → 6-piperidinomethyl-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With ethanol

formaldehyd (50-00-0) + 5,6-methylenedioxy-1-indanone (6412-87-9) + 1,2,3,4-tetrahydroisoquinoline (14099-81-1) → 6-(3,4-dihydro-1H-[2]isoquinolylmethyl)-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one; hydrochloride

Conditions	Yield
With ethanol

5,6-methylenedioxy-1-indanone (6412-87-9) + 6-nitro-1,3-benzodioxole-5-carbaldehyde (712-97-0) → 6-((Ξ)-6-nitro-benzo[1,3]dioxol-5-ylmethylene)-6,7-dihydro-indeno[5,6-d][1,3]dioxol-5-one

Conditions	Yield
With acetic anhydride

Upstream product

• 2373-80-0 3,4-(methylenedioxy)cinnamic acid 
• 120-57-0 piperonal 
• 2373-80-0 3,4-methylenedioxy-trans-cinnamic acid 
• 937792-71-7 tert-butyl((6-ethynylbenzo[d][1,3]dioxol-5-yl)methoxy)dimethylsilane 
• 64-17-5 ethanol 
• 3811-52-7 2-ethenyl-4,5-(methylenedioxy)benzaldehyde 
• 2815-95-4 3-(1,3 benzodioxol-5-yl)propionic acid 
• 71-43-2 benzene 
• 10026-13-8 phosphorus pentachloride 
• 68996-81-6 3-benzo[1,3]dioxol-5-yl-propionyl chloride 

Downstream Products

• 1294495-52-5 (Z/E)-3-(2-bromo-6-methoxyphenyl)-2-(2-carboxy-4,5-methylenedioxyphenyl)acrylic acid methyl ester 
• 1620645-88-6 6-[[3-acetyl-1-(o-tolylmethyl)-4H-pyridin-4-yl]methyl]-5,6-dihydrocyclopenta[f ][1,3]benzodioxol-7-one 
• 1620645-52-4 (±)-6-[[3-acetyl-1-(o-tolylmethyl)pyridin-1-ium-4-yl]methyl]-5,6-dihydrocyclopenta[f][1,3]benzodioxol-7-one bromide 
• 5578-73-4 sanguinarine chloride 
• 548-30-1 oxysanguinarine 
• 3606-45-9 dihydrosanguinarine 
• 1421448-21-6 6,7-methylenedioxy-N-phenyl-1,4-dihydroindeno[1,2-c]pyrazol-3-amine 

Relevant articles and documents

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