Dayangchem's 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. DayangChem can provide different quantities
Cas:615-28-1
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryOur 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
Cas:615-28-1
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryProduct Name: OPD EASY-tablets Synonyms: usafek-678;OPD DIHYDROCHLORIDE;OPD EASY-tablets;O-PD, HCL;ORTHO-PHENYLENEDIAMINEDIHYDROCHLORIDE;o-phenylenediamine hydrochloride;SIGMAFASTTM OPD;o-Phenylenediamine·2hydrochloride
Cas:615-28-1
Min.Order:1 Kilogram
FOB Price: $8900.0
Type:Lab/Research institutions
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Cas:615-28-1
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryJ&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
Cas:615-28-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:615-28-1
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Cas:615-28-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiryProduct Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:615-28-1
Min.Order:1 Kilogram
FOB Price: $112.0
Type:Trading Company
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
Cas:615-28-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySupply top quality products with a reasonable price Application:api
1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highl
Cas:615-28-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryUnited Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat
Cas:615-28-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryBest price
Cas:615-28-1
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryfast delivery, competitive price, good quality, world class quality Storage:Storage in place with condition of being dry and ventilated Package:according to customer's requirement Application:raw material for production Transportation:by express, by
Cas:615-28-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1,2-Benzenediamine,hydrochloride (1:2) 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/Shen
Cas:615-28-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryDebyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen
Cas:615-28-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryYUYONGMEI was established in Aug,1999, located in the industrial park of Nanjing University of Technology, It is a private enterprises in Jiangsu Province with 1200 square meters’ R&D center. Our R&D center has a well-equipped synthetic laboratory a
Cas:615-28-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryhigh purity Application:Drug intermediates Materials intermediates and active molecules
1,1,1-trifluoroacetophenone
o-phenylenediamine dihydrochloride
2-phenyl-1H-benzoimidazole
Conditions | Yield |
---|---|
In N,N-dimethyl acetamide at 120 - 130℃; for 24h; | 99.6% |
o-phenylenediamine dihydrochloride
ethyl acetate
2-Methyl-1H-benzimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 99% |
o-phenylenediamine dihydrochloride
Ethyl propionate
2-ethylbenzimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 99% |
ethyl 2-hydroxyacetate
o-phenylenediamine dihydrochloride
2-(Hydroxymethyl)benzimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 97% |
Conditions | Yield |
---|---|
In water at 230℃; for 0.166667h; Microwave irradiation; Green chemistry; | 97% |
o-phenylenediamine dihydrochloride
chloroacetic acid ethyl ester
2-chloromethyl-1H-benzimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 95% |
o-phenylenediamine dihydrochloride
4-amino-benzoic acid
4-(1H-benzimidazol-2-yl)aniline
Conditions | Yield |
---|---|
With PPA for 0.0833333h; microwave irradiation; | 94.8% |
Ethyl hexanoate
o-phenylenediamine dihydrochloride
2-pentyl-1H-benzoimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 94% |
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 94% |
o-phenylenediamine dihydrochloride
diethyl malonate
bis(1H-benzo[d]imidazol-2-yl)methane
Conditions | Yield |
---|---|
In ethylene glycol for 0.025h; microwave irradiation; | 92% |
Conditions | Yield |
---|---|
In water for 0.0222222h; microwave irradiation; | 89.01% |
With hydrogenchloride In water for 4h; Inert atmosphere; Reflux; | 68% |
Stage #1: o-phenylenediamine dihydrochloride; acetic acid In water for 0.75h; Reflux; Stage #2: With ammonia In water | 60% |
o-phenylenediamine dihydrochloride
para-chlorobenzoic acid
2-(4-chlorophenyl)benzimidazole
Conditions | Yield |
---|---|
With PPA for 0.075h; microwave irradiation; | 88.63% |
trans-2-chlorocinnamic acid
o-phenylenediamine dihydrochloride
(E)-2-(2-chlorostyryl)-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 88% |
(E)-2-methyl-3-(4-nitrophenyl)acrylic acid
o-phenylenediamine dihydrochloride
2-[1-methyl-2-(4-nitro-phenyl)-vinyl]-1H-benzoimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 88% |
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 86% |
4-nitro-trans-cinnamic acid
o-phenylenediamine dihydrochloride
(E)-2-(4-nitrostyryl)-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 86% |
(E)-3-phenylacrylic acid
o-phenylenediamine dihydrochloride
(E)-2-styryl-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 85% |
Conditions | Yield |
---|---|
Stage #1: bromocyane; o-phenylenediamine dihydrochloride With sodium hydrogencarbonate In water; acetonitrile at 0 - 20℃; Stage #2: With sodium carbonate In water; acetonitrile | 85% |
o-phenylenediamine dihydrochloride
benzoic acid
2-phenyl-1H-benzoimidazole
Conditions | Yield |
---|---|
With PPA for 0.075h; microwave irradiation; | 84.83% |
(E)-3-Nitrocinnamic acid
o-phenylenediamine dihydrochloride
2-(3-nitro-styryl)-1H-benzoimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 84% |
o-phenylenediamine dihydrochloride
acetone
2,2,4-trimethyl-2,3-dihydro-1H-1,5-benzodiazepine
Conditions | Yield |
---|---|
In water at 20℃; for 7h; | 83% |
With sodium hydroxide for 18h; Ambient temperature; gas/solid reaction; |
-2-methyl-3-(4-chlorophenyl)prop-2-enoic acid
o-phenylenediamine dihydrochloride
2-[2-(4-chloro-phenyl)-1-methyl-vinyl]-1H-benzoimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 83% |
3-(4-chlorophenyl)prop-2-enoic acid
o-phenylenediamine dihydrochloride
(E)-2-(4-chlorostyryl)-1H-benzo[d]imidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 82% |
-2-methyl-3-(4-methylphenyl)prop-2-enoic acid
o-phenylenediamine dihydrochloride
2-(1-methyl-2-p-tolyl-vinyl)-1H-benzoimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 82% |
o-phenylenediamine dihydrochloride
chloroacetic acid
2-chloromethyl-1H-benzimidazole
Conditions | Yield |
---|---|
In water for 1.5h; Reflux; | 82% |
Conditions | Yield |
---|---|
With boric acid In toluene for 12h; Reflux; | 81% |
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 80% |
2-methyl-3-(3-nitrophenyl)propenoic acid
o-phenylenediamine dihydrochloride
2-[1-methyl-2-(3-nitro-phenyl)-vinyl]-1H-benzoimidazole
Conditions | Yield |
---|---|
In ethylene glycol for 5h; Condensation; Cycloaddition; Heating; | 80% |
Conditions | Yield |
---|---|
With HCl In water N2 atmosphere; diamine dihydrochloride added to the soln. of MoCl5 in 12 M HCl (shaking) and dry HCl passed into the soln. for 1-2 h; redn. of the soln. volume to one third by gently heating; passing dry HCl into the soln. (ice-cooling); pptd. crystals vacuum-filtered, washed with ether/thionyl chloride (1:1) to avoid hydrolysis and dried over KOH; elem. anal.; | 80% |
(E/Z)-16-hydroxyhexadec-9-enoic acid
o-phenylenediamine dihydrochloride
Conditions | Yield |
---|---|
In ethylene glycol at 150 - 200℃; | 79% |
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