Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
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inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
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inquirySuperior quality, moderate price & quick delivery. Appearance:off-white solid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Potentially muta
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inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung, LG, Merck, Thermo Fisher Scientific and so o
Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
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Hangzhou Dingyan Chem is a leading manufacturer and supplier of chemicals in China.We develop,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quality in your re
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Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
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inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China
in storeAppearance:White or light red crystalline powder Package:25g Application:Organic Chemicals
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inquiryBenzidine Basic information Product Name: Benzidine Synonyms: (1,1’-Biphenyl)-4,4’-diamine;[1,1’-biphenyl]-4,4’-diamine;[1,1'-Biphenyl]-
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inquiryHuBei ipure is a diversified product production and operation enterprise, with API, pharma intermediates, and other fine chemicals as well as R&D and pigments development and sales as one of the large enterprises, with more than 130 acres of pl
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inquirysub/micron to mesh powders (near/spheres, whiskers, flake, fiber, porous) and grain/ball, thin/ thick metal / alloys pieces / parts, thin and thick (particle) film materials /target, and custom-made crystals, substrates/parts. In the industries and a
Product name:Benzidine Synonyms:(1,1’-Biphenyl)-4,4’-diamine;[1,1’-biphenyl]-4,4’-diamine;[1,1'-Biphenyl]-4,4'-diamine;4,4’-bianiline;4,4’-biphenylenediamine;4,4’-diamino-bipheny;4,4’-diaminodiphenyl;Appearance:crystalline powder Storage:Store at RT
R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
please contact us to confirm the required quantity and quote, we will provide you with COA,NMR,HPLC and other relevant information Storage:Store in a cool place. Keep container tightly closed in a dry and well-ventilated place Package:as your needs A
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inquiryBenzidine Application:822674
[1,1'-Biphenyl]-4,4'-diamine Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By courier like DHL or Fedx. Port:Shanghai/Shenzhen
Jiangxi Shengwei Chemical Technology Co., Ltd.supplies scientific research products as below:1.High-purity organic chemical reagents;2.Analytical reagents; 3.Biochemical reagents;4.Chemical raw materials;5.Experimental instruments;6.Experimental cons
Conditions | Yield |
---|---|
With C24H12Cu2F9N4O7; tetrabutylammomium bromide; ammonia; caesium carbonate In water; ethylene glycol at 110 - 140℃; for 16h; | 100% |
With bis(tri-ortho-tolylphosphine)palladium(0); (R)-(-)-1-[(S)-2-(dicyclohexylphosphino)ferrocenyl]ethyl-di-tert-butylphosphine; ammonia; sodium t-butanolate In 1,4-dioxane at 100℃; for 12h; Inert atmosphere; | 79% |
Conditions | Yield |
---|---|
With magnesium In water at 100℃; for 2h; Sealed tube; | 96% |
With tetrabutylammomium bromide; palladium diacetate; potassium carbonate In water; N,N-dimethyl-formamide Buchwald-Hartwig Coupling; | 75% |
With tetrabutylammonium tetrafluoroborate In acetonitrile at 20℃; for 8h; Electrochemical reaction; | 38% |
Conditions | Yield |
---|---|
With hydrazine In methanol at 50℃; | 95% |
With sodium tetrahydroborate In ethanol at 24.84℃; for 2h; | 95% |
With hydrazine hydrate In ethanol at 70℃; for 4h; chemoselective reaction; | 93% |
Conditions | Yield |
---|---|
With carbon dioxide; aluminium; 1-butyl-3-methylimidazolium trifluoromethanesulfonimide at 65℃; under 116262 Torr; for 16h; Ullmann reaction; | 95% |
With 4-(3'-butyl-1'-imidazolio)-1-butanesulfonic acid hydrogen sulfate; aluminium In carbon dioxide at 45℃; under 116262 Torr; for 16h; Ullmann reaction; Supercritical conditions; | 94% |
With sulphonic acid functionalized porphyrin meso-substituted triazolium anchored ionic liquid at 20℃; for 16h; Catalytic behavior; Time; Ullmann Condensation; Irradiation; | 91% |
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; potassium acetate; bis(pinacol)diborane In ethanol at 60℃; for 8h; Suzuki-Miyaura Coupling; Inert atmosphere; | 94.3% |
With potassium carbonate In N,N-dimethyl-formamide for 0.75h; | 90% |
With magnesium In water at 100℃; for 3.5h; Sealed tube; | 85% |
Conditions | Yield |
---|---|
With copper(l) iodide; tetra(n-butyl)ammonium hydroxide; ammonia In water at 25℃; for 24h; Inert atmosphere; Sealed tube; chemoselective reaction; | 91% |
N4,N4'-bis(diphenylmethylene)biphenyl-4,4'-diamine
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With hydrogenchloride In tetrahydrofuran; water at 20℃; for 2h; | 82% |
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol at 70℃; for 4h; chemoselective reaction; | A 82% B 7% |
(4-aminophenyl)boronic acid
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate; potassium carbonate In water; acetone for 3h; | 80% |
Conditions | Yield |
---|---|
In ethanol; water | A 30% B 70% |
With hydrogenchloride; lithium chloride In ethanol at 0℃; for 0.5h; Product distribution; kinetic isotope effects; reaction of var. labeled hydrazobenzenes, var. time; | A 91.5 mg B 15.8% |
With hydrogenchloride; lithium chloride In ethanol at 0℃; for 0.5h; | A 91.5 mg B 15.8% |
Conditions | Yield |
---|---|
With L-Cysteine; potassium hydroxide In water; dimethyl sulfoxide at 100℃; for 0.333333h; Green chemistry; | 70% |
Multi-step reaction with 2 steps 1: copper / N,N-dimethyl-formamide / Heating 2: hydrazine; 3% Pd/C / ethanol / Heating View Scheme | |
Multi-step reaction with 2 steps 1: copper / N,N-dimethyl-formamide / 12 h / 160 °C 2: hydrazine; 3% Pd/C / ethanol / 12 h / 20 - 100 °C View Scheme |
1,2,3,4-tetrahydroisoquinoline
4-amino-4'-nitrobiphenyl
A
quinoline
B
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With nickel-nitrogen-doped carbon framework In water at 145℃; for 18h; Inert atmosphere; Sealed tube; Green chemistry; | A 68% B 70% |
Conditions | Yield |
---|---|
With hydrogenchloride In water for 3h; Reflux; | 67% |
With hydrogenchloride In ethanol at 0℃; for 2.5h; Rearrangement; | 51% |
Thermodynamic data; |
Conditions | Yield |
---|---|
With LiCrH4*2LiCl*2THF In tetrahydrofuran at 25℃; for 12h; | A 64% B 31% |
With hydrogenchloride; N-benzylthiazolium bromide; benzaldehyde; triethylamine 1) MeOH, r.t., 20 h, 2) MeOH, HCl; Yield given. Multistep reaction. Yields of byproduct given; |
Conditions | Yield |
---|---|
With hydrazine hydrate In ethanol at 70℃; for 4h; chemoselective reaction; | A 27% B 55% |
Conditions | Yield |
---|---|
With L-Cysteine; potassium hydroxide In water; dimethyl sulfoxide at 100℃; for 0.666667h; Green chemistry; | 55% |
4-bromo-aniline
zinc
A
NH2C6H4ZnBr
B
aniline
C
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With trifluoroacetic acid; cobalt(II) bromide; zinc dibromide In acetonitrile the mixt. in CH3CN was stirred at room temp., then arylbromide was added, stirred at room temp.; GC analysis; | A 40% B 52% C 0% |
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride; titanium tetrachloride In diethyl ether at 20℃; for 15h; Solvent; Inert atmosphere; | A 48% B 25% C 5% |
Conditions | Yield |
---|---|
With 9,10-Dicyanoanthracene; ammonia In water; acetonitrile for 20h; Irradiation; | A 13% B 43% |
4-bromo-2-fluoroaniline
B
3,3'-difluorobiphenyl-4,4'-diamine
C
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With sodium hydroxide; sodium formate; cetyltrimethylammonim bromide; palladium on activated charcoal In water for 4h; Heating; | A 15% B 33% C 10% |
Stage #1: 4-bromo-2-fluoroaniline With palladium on activated charcoal; sodium formate; cetyltrimethylammonim bromide; sodium hydroxide In water for 4h; Reflux; Stage #2: With sodium acetate for 20h; Reflux; |
bromochlorobenzene
(adamantane-1,3-diyl)dimethanamine
A
3-(4-chlorophenylaminomethyl)adamantane-1-carbaldehyde
B
4-chloro-N-[3-(4-chlorophenylaminomethyl)adamantan-1-ylmethyl]aniline
C
4-chloro-aniline
D
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate In 1,4-dioxane for 7h; Inert atmosphere; Reflux; | A 25% B 31% C 18% D 7% |
3-methyl-1,5-diphenyl-4,5-dihydro-1H-pyrazole
A
trans-2-styrylindole
B
(E)-benzalacetone
C
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With PPA; Polyphosphoric acid (PPA) at 170℃; for 0.666667h; | A 30% B n/a C 0.35 g |
3-methyl-1,5-diphenyl-4,5-dihydro-1H-pyrazole
A
trans-2-styrylindole
B
1-Phenylbut-1-en-3-one
C
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With PPA at 130℃; Product distribution; Mechanism; studies of the Fischer indole synthesis; | A 25% B 21% C 18% |
With PPA at 130℃; | A 25% B 21% C 18% |
1.4-dibromobenzene
1,3-bis(aminoethyl)adamantane
C
4-bromo-N-(2-{3-[2-(4-bromophenylamino)ethyl]adamantan-1-yl}ethyl)aniline
D
4-bromo-aniline
E
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate In 1,4-dioxane for 7h; Inert atmosphere; Reflux; | A n/a B n/a C 11% D 7% E 9% |
2-(2-bromophenyl)propanol
4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)aniline
B
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate Suzuki Coupling; Inert atmosphere; | A 10% B n/a |
tetrahydrofuran
phenylcalcium iodide
A
biphenyl
B
n-butyl phenyl ether
C
Azobenzene
D
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With dinitrogen monoxide Ambient temperature; Yield given; | A n/a B n/a C 6% D n/a |
With dinitrogen monoxide Product distribution; Ambient temperature; | A n/a B n/a C 6% D n/a |
pyridine
4,4'-Bis-(N'-phenyl-hydrazino)-biphenyl
acetic acid
A
4,4'-Bis-(phenyl-trans-azo)-biphenyl
B
aniline
C
4'-phenylazo-biphenyl-4-ylamine
D
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
unter Kohlendioxid; |
Conditions | Yield |
---|---|
With potassium hydroxide; hydrazine hydrate; palladium |
Conditions | Yield |
---|---|
Acetylation; | 100% |
In acetone for 3h; | 100% |
for 0.00277778h; Green chemistry; | 98% |
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With ammonium vanadate; sulfuric acid | 100% |
With ammonium cerium(IV) nitrate; sulfuric acid In water |
Conditions | Yield |
---|---|
for 120h; Ambient temperature; | 100% |
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 48h; | 100% |
Conditions | Yield |
---|---|
With sodium hydroxide; PEG-600 In dichloromethane; water at 20℃; for 1h; Acylation; | 99% |
N-(tert-butoxycarbonyl)-D-proline
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
With N-(3-dimethylaminopropyl)-N-ethylcarbodiimide In dichloromethane at 20℃; for 2h; | 99% |
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h; | 99% |
Conditions | Yield |
---|---|
With formic acid In methanol at 20℃; for 25h; Reflux; | 99% |
Conditions | Yield |
---|---|
In acetonitrile for 0.166667h; Milling; Green chemistry; | 99% |
Conditions | Yield |
---|---|
In melt for 0.333333h; | 99% |
benzenesulfonyl chloride
p,p'-diaminobiphenyl
N,N'-(biphenyl-4,4'-diyl)dibenzenesulfonamide
Conditions | Yield |
---|---|
With pyridine In dichloromethane at 20℃; for 4h; pH=Ca. 8; | 98% |
With pyridine |
meta-bromotoluene
chlorobenzene
p,p'-diaminobiphenyl
4,4'-bis(m-tolylphenylamino)biphenyl
Conditions | Yield |
---|---|
With chloro[2-(dicyclohexylphosphino)-3 ,6-dimethoxy-2’,4’, 6’-triisopropyl- 1,1’-biphenyl] [2-(2-aminoethyl)phenyl]palladium(II); sodium t-butanolate; ruphos In 1,4-dioxane at 110℃; for 24h; Inert atmosphere; | 98% |
9-chloro-1,2,3,4-tetrahydroacridine
trifluoroacetic acid
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
Stage #1: 9-chloro-1,2,3,4-tetrahydroacridine; p,p'-diaminobiphenyl With trichlorophosphate In pentan-1-ol for 40h; Reflux; Stage #2: trifluoroacetic acid In water | 98% |
2,3-dihydroxybenzaldehyde
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
In methanol | 97% |
With ethanol |
di-tert-butyl dicarbonate
p,p'-diaminobiphenyl
tert-butyl (4'-amino-[1,1'-biphenyl]-4-yl)carbamate
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran; water; N,N-dimethyl-formamide at 20℃; for 5h; | 97% |
With sodium carbonate In 1,4-dioxane Ambient temperature; | 90% |
In 1,4-dioxane at 20℃; for 24h; Inert atmosphere; | 85% |
In 1,4-dioxane for 24.5h; Inert atmosphere; | 85% |
In 1,4-dioxane at 20℃; for 25h; Inert atmosphere; | 85% |
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
Stage #1: p,p'-diaminobiphenyl; naphthalen-2-ylmethyl pyridine-2-carbimidothioate hydrobromide In ethanol; acetonitrile at 20℃; Cooling with ice; Stage #2: With sodium hydroxide In ethanol at 0℃; pH=Ca. 10; Stage #3: With hydrogenchloride In ethanol at 0 - 20℃; | 97% |
1-(benzyloxy)-3-((2,4-difluorobenzyl)carbamoyl)-2-oxo-1,2-dihydro-1,8-naphthyridin-4-yl 4-methylbenzenesulfonate
p,p'-diaminobiphenyl
4-((4'-amino-[1,1'-biphenyl]-4-yl)amino)-1-(benzyloxy)-N-(2,4-difluorobenzyl)-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamide
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 50℃; for 1h; | 97% |
2-(2-chloroacetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile
p,p'-diaminobiphenyl
Conditions | Yield |
---|---|
In 1,4-dioxane for 4h; Reflux; | 97% |
Conditions | Yield |
---|---|
In acetonitrile at 20 - 25℃; for 0.75h; Sonication; | 96% |
Conditions | Yield |
---|---|
With 1,10-((ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(3-sulfo-1H benzimidazol-3-ium)chloride In neat (no solvent) at 50℃; for 1h; Green chemistry; | 96% |
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; potassium iodide In water; acetonitrile at 80℃; for 15h; | 95% |
With tert.-butylhydroperoxide; 3 A molecular sieve; zirconium(IV) tert-butoxide In dichloromethane for 5h; Ambient temperature; | 90% |
With sulfuric acid Diazotization.Behandlung der Diazoniumsalz-Loesung mit NaNO2 und Kupfer(I)-kupfer(II)-sulfit; |
4-hydroxy-benzaldehyde
p,p'-diaminobiphenyl
4-amino-4'-(p-hydroxy)benzylideneimino-1,1'-biphenyl
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In N,N-dimethyl-formamide at 80℃; for 4h; | 95% |
With piperidine In ethanol Heating; |
2-isocyanatobenzoyl chloride
p,p'-diaminobiphenyl
3,3'-(4,4'-Biphenylene)bis(2,4-dioxo-1,2,3,4-tetrahydroquinazoline)
Conditions | Yield |
---|---|
With triethylamine In toluene 1.) 1 h, 0 deg C, 2.) 1 h, room temperature, 3.) 36 h, reflux; | 95% |
Conditions | Yield |
---|---|
In di-isopropyl ether Heating; | 95% |
Conditions | Yield |
---|---|
With sodium t-butanolate; Ni(0)*2IPr In 1,4-dioxane at 100℃; | 95% |
With palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; sodium hydroxide In tetrahydrofuran; ethanol; water; toluene; tert-butyl alcohol at 100℃; for 16h; Glovebox; Inert atmosphere; Schlenk technique; | 116.5 mg |
salicylaldehyde
p,p'-diaminobiphenyl
4,4'-bis{5-(1-formyl-2-hydroxyphenyl)azo}diphenyl
Conditions | Yield |
---|---|
Stage #1: p,p'-diaminobiphenyl With hydrogenchloride; sodium nitrite In water Cooling with ice; Stage #2: salicylaldehyde With sodium hydroxide In water at 0 - 5℃; | 95% |
Multistep reaction.; | 76% |
9-hydroxyxanthene
p,p'-diaminobiphenyl
N4,N4'-di(9H-xanthen-9-yl)-[1,1'-biphenyl]-4,4’-diamine
Conditions | Yield |
---|---|
With ferric hydrogen sulphate In ethanol for 0.5h; Reflux; regioselective reaction; | 95% |
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