Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
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inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
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inquiryHenan 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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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
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inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
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Min.Order:100 Gram
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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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inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryShandong Mopai Biotechnology 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 chemicals. W
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Min.Order:1 Gram
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inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis:
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inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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Min.Order:1 Metric Ton
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inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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inquiryR & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
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Type:Manufacturers
inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
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Min.Order:1 bottle
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Type:Lab/Research institutions
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:Beijing or Guangzhou
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Type:Lab/Research institutions
inquiry1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:152-20-5
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Type:Lab/Research institutions
inquiryfactory?direct?sale Application:healing drugs
Cas:152-20-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for
Cas:152-20-5
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inquiryO,O,S-trimethyl phosphorothioate Application:O,O,S-trimethyl phosphorothioate
Phosphorothioic acid, O,O,S-trimethyl esterAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:152-20-5
Min.Order:0
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Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta
Cas:152-20-5
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Type:Lab/Research institutions
inquiryHangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri
Cas:152-20-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryO,O,S-trimethyl phosphorothioateAppearance:as detailed Storage:Room temperature Package:as required Application:152-20-5 Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea LCL/FCL f
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inquirymethanol
Benzyl-thiophosphoramidic acid O,S-dimethyl ester
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With boron trifluoride methanol complex 1) 0 deg C, 1h, 2) RT, overnight; | 86% |
methanol
N,N-dimethyl O,S-dimethyl phosphoramidothioate
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With boron trifluoride methanol complex 1) 0 deg C, 1h, 2) RT, overnight; | 80% |
Conditions | Yield |
---|---|
With boron trifluoride methanol complex 1) 0 deg C, 1h, 2) RT, overnight; | 74% |
methyl phosphite
dimethyl sulfoxide
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With 1,3,5-trichloro-2,4,6-triazine In acetonitrile at 80℃; for 1h; | 71% |
2,6-lutidinium O,O-dimethyl phosphorothioate
methyl iodide
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
In dichloromethane for 0.5h; | 63% |
Conditions | Yield |
---|---|
With monoperoxyphthalic acid; magnesium salt In dichloromethane for 12h; Heating; | 51% |
O,O-dimethyl S-hydrogen phosphorothioate
dicyclohexyl-carbodiimide
A
O,O,S-trimethyl phosphorothioate
B
O,O,O-trimethylthiophosphate
C
1,3-dicyclohexylthiourea
Conditions | Yield |
---|---|
In diethyl ether; Petroleum ether Mechanism; Product distribution; Ambient temperature; solvents: diethylether, accetonitrile; | A n/a B n/a C 35% |
diazomethane
O,S-dimethyl phosphorothiolate
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With 1,4-dioxane; diethyl ether | |
Methylation; |
methyl thiocyanate
methyl phosphite
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With sodium; benzene |
Conditions | Yield |
---|---|
at 100℃; | |
With water | |
With methanol |
methyl thiocyanate
sodium diethyl phosphite
toluene
A
O,O,S-trimethyl phosphorothioate
B
sodium cyanide
methanol
Natriumsalz des Thiophosphorsaeure-O,O-dimethylesters
dimethyl sulfate
O,O,S-trimethyl phosphorothioate
O,O,O-trimethylthiophosphate
methyl iodide
A
O,O,S-trimethyl phosphorothioate
B
trimethylsulphonium iodide
Conditions | Yield |
---|---|
at 100℃; |
methanol
Benzyl-thiophosphoramidic acid O,S-dimethyl ester
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With boron trifluoride methanol complex 1) 0 deg C, 1h, 2) RT, overnight; | 86% |
methanol
N,N-dimethyl O,S-dimethyl phosphoramidothioate
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With boron trifluoride methanol complex 1) 0 deg C, 1h, 2) RT, overnight; | 80% |
Conditions | Yield |
---|---|
With boron trifluoride methanol complex 1) 0 deg C, 1h, 2) RT, overnight; | 74% |
methyl phosphite
dimethyl sulfoxide
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With 1,3,5-trichloro-2,4,6-triazine In acetonitrile at 80℃; for 1h; | 71% |
2,6-lutidinium O,O-dimethyl phosphorothioate
methyl iodide
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
In dichloromethane for 0.5h; | 63% |
Conditions | Yield |
---|---|
With monoperoxyphthalic acid; magnesium salt In dichloromethane for 12h; Heating; | 51% |
O,O-dimethyl S-hydrogen phosphorothioate
dicyclohexyl-carbodiimide
A
O,O,S-trimethyl phosphorothioate
B
O,O,O-trimethylthiophosphate
C
1,3-dicyclohexylthiourea
Conditions | Yield |
---|---|
In diethyl ether; Petroleum ether Mechanism; Product distribution; Ambient temperature; solvents: diethylether, accetonitrile; | A n/a B n/a C 35% |
diazomethane
O,S-dimethyl phosphorothiolate
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With 1,4-dioxane; diethyl ether | |
Methylation; |
methyl thiocyanate
methyl phosphite
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With sodium; benzene |
Conditions | Yield |
---|---|
at 100℃; | |
With water | |
With methanol |
methyl thiocyanate
sodium diethyl phosphite
toluene
A
O,O,S-trimethyl phosphorothioate
B
sodium cyanide
methanol
Natriumsalz des Thiophosphorsaeure-O,O-dimethylesters
dimethyl sulfate
O,O,S-trimethyl phosphorothioate
O,O,O-trimethylthiophosphate
methyl iodide
A
O,O,S-trimethyl phosphorothioate
B
trimethylsulphonium iodide
Conditions | Yield |
---|---|
at 100℃; |
diazomethane
O,O-dimethyl S-hydrogen phosphorothioate
A
O,O,S-trimethyl phosphorothioate
B
O,O,O-trimethylthiophosphate
tetramethylammonium O,O-dimethyl phosphorothioate
O,O,S-trimethyl phosphorothioate
Conditions | Yield |
---|---|
With triethylmethylammonium; trifluoroacetic acid In dichloromethane at 24.9℃; Rate constant; Mechanism; |
(2S,4R,5S)-2-ethoxy-4-methyl-5-phenyl-1,3,2-oxazaphospholidine-2-thione
A
(2R,3R)-2-methyl-3-phenylaziridine
B
O,O,S-trimethyl phosphorothioate
C
R-(+)-ethyl OS-dimethyl phosphorothioate
Conditions | Yield |
---|---|
With sodium methylate; methyl iodide Multistep reaction; |
sodium methylate
(2S,4R,5S)-2-ethoxy-4-methyl-5-phenyl-1,3,2-oxazaphospholidine-2-thione
methyl iodide
A
(2R,3R)-2-methyl-3-phenylaziridine
B
O,O,S-trimethyl phosphorothioate
C
R-(+)-ethyl OS-dimethyl phosphorothioate
Conditions | Yield |
---|---|
1.) several hours; Multistep reaction; | |
Multistep reaction; |
O,O,O-trimethylthiophosphate
methyl diazoacetate
A
O,O,S-trimethyl phosphorothioate
B
O,O-Dimethyl-S-(methoxycarbonylmethyl)-thiophosphorsaeure
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In dichloromethane |
Conditions | Yield |
---|---|
With methanol |
Conditions | Yield |
---|---|
With diethyl ether at 100℃; |
Conditions | Yield |
---|---|
With methanol |
Conditions | Yield |
---|---|
Stage #1: O,O-dimethyl phosphorodithioic acid With chlorine In toluene at 5 - 10℃; for 1.5h; Heating / reflux; Stage #2: With potassium hydroxide In water; toluene pH=> 7.0; Stage #3: methyl iodide In acetonitrile at 20℃; for 10h; |
omethoate
A
trimethyl phosphite
B
O,O,S-trimethyl phosphorothioate
C
mercapto-acetic acid methylamide
D
Dimethyl phosphite
Conditions | Yield |
---|---|
With oxygen In acetone for 0.0333333h; Plasma treatment; |
parathion-methyl
A
4-nitro-phenol
B
2-propyl-1-pentanol
C
O,O,S-trimethyl phosphorothioate
D
poly(methacrylic acid)
E
methyl paraoxon
F
Diethyl phthalate
G
hydroquinone
H
thioacetic acid
Conditions | Yield |
---|---|
With oxygen at 22.2 - 25.3℃; Kinetics; Quantum yield; Wavelength; UV-irradiation; Neat (no solvent); |
parathion-methyl
A
4-nitro-phenol
B
2-propyl-1-pentanol
C
O,O,S-trimethyl phosphorothioate
D
poly(methacrylic acid)
E
methyl paraoxon
F
propionic acid
G
hydroquinone
H
thioacetic acid
Conditions | Yield |
---|---|
With water at 22.2 - 25.3℃; Kinetics; Quantum yield; Wavelength; UV-irradiation; Neat (no solvent); Inert atmosphere; |
Conditions | Yield |
---|---|
In further solvent(s) to (MeO)2(MeS)PO Me3SnI added, stirred at 85°C; volatiles removed, residue crystalized; elem. anal.; | 95% |
O,O,S-trimethyl phosphorothioate
A
phosphorochloridothioic acid,O,S-dimethyl ester
B
methyl dichlorophosphoridate
Conditions | Yield |
---|---|
With trichlorophosphate at 75℃; for 2.5h; Chlorination; | A 72% B n/a |
O,O,S-trimethyl phosphorothioate
thiourea
S-methyl-isothiourea; S-methyl-isothiuronium-(O,S-dimethyl thiophosphate )
Conditions | Yield |
---|---|
With ethanol |
O,O,S-trimethyl phosphorothioate
trimethylamine
tetramethyl-ammonium; (O,S-dimethyl thiophosphate )
Conditions | Yield |
---|---|
With diethyl ether |
O,O,S-trimethyl phosphorothioate
methyl iodide
trimethylsulphonium iodide
Conditions | Yield |
---|---|
at 100℃; |
O,O,S-trimethyl phosphorothioate
trimethylsilyl bromide
S-methyl O,O-bis(trimethylsilyl)phosphorothioate
Conditions | Yield |
---|---|
In dichloromethane |
O,O,S-trimethyl phosphorothioate
methyl-carbamic acid-(2-diethylamino-ethyl ester)
Conditions | Yield |
---|---|
In benzene |
O,O,S-trimethyl phosphorothioate
ethyl-carbamic acid-(2-diethylamino-ethyl ester)
Conditions | Yield |
---|---|
In benzene |
O,O,S-trimethyl phosphorothioate
N-Methyl-carbaminsaeure-(2-diisopropylamino-ethylester)
Conditions | Yield |
---|---|
In benzene |
O,O,S-trimethyl phosphorothioate
N-Ethyl-carbaminsaeure-(2-diisopropylamino-ethylester)
Conditions | Yield |
---|---|
In benzene |
O,O,S-trimethyl phosphorothioate
N-Methyl-carbaminsaeure-(2-dibutylamino-ethylester)
Conditions | Yield |
---|---|
In benzene |
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