As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:5571-36-8
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inquiryProduct description: Product name Estradiene dione-3-keta CAS number 5571-36-8 Assay ≥99% Appearance White powder Capacity 200mt/year Application Ulipristal acetate intermedi
Cas:5571-36-8
Min.Order:10 Gram
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inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
Cas:5571-36-8
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inquiryCAS RN.: 5571-36-8 EINECS: 427-230-8 Molecular Weight:
Cas:5571-36-8
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryLocated in Zhengdong New District, Zhengzhou of Henan province, Henan Allgreen Chemical Co.,Ltd is comprehensive high-tech modern enterprises integrating professional R&D, production and sales. Strong technical force, with a long-term professio
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inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:5571-36-8
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inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:5571-36-8
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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:5571-36-8
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inquiryName:Estradienedione-3-keta The alias:ESTRADIENEDIONE-3-KETA;ESTRADIENEDIONE-3-KETAL;cyclic-3-(1,2-ethanediylacetal)-estra-5(10),9(11)-dien-3,17-dione CAS NO:5571-36-8 EINECS NO:427-230-8 Molecular formula:C20H26O3 Molecular weight:314.43 P
Cas:5571-36-8
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inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
Cas:5571-36-8
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Type:Trading Company
inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by email in time prod
Cas:5571-36-8
Min.Order:1 Kilogram
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inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:5571-36-8
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Type:Trading Company
inquiryOur 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
Cas:5571-36-8
Min.Order:10 Gram
Negotiable
Type:Trading Company
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Cas:5571-36-8
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Type:Lab/Research institutions
inquiry1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd
Cas:5571-36-8
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FOB Price: $3.0 / 6.0
Type:Trading Company
inquiryHANGZHOU THINK CHEMICAL CO., LTD. (THINKCHEM) is an integrative corporation of trade, research and contract manufacture. With about ten years of business ex
Cas:5571-36-8
Min.Order:1 Kilogram
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Type:Other
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
Cas:5571-36-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryEstradiene dione-3-keta CAS:5571-36-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic in
Cas:5571-36-8
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products with competi
Cas:5571-36-8
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures
Cas:5571-36-8
Min.Order:1 Kilogram
FOB Price: $15.0 / 25.0
Type:Lab/Research institutions
inquiryAppearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:As customer request Port:Qingda
Cas:5571-36-8
Min.Order:0 Metric Ton
FOB Price: $16.0 / 20.0
Type:Lab/Research institutions
inquiry1. "Top 100 innovation-oriented export enterprises Of Hangzhou" honored by Hangzhou government 2. Specialized in the fine chemicals and pharmaceuticals 3. A leading manufacturer and trader of APIs in China
Cas:5571-36-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur company provides one-stop services of research - development - production for a variety of special prouducts. Not only do we make effective use of our strong technological strength, but also establish of cooperative relations with several well-
Cas:5571-36-8
Min.Order:100 Gram
Negotiable
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:5571-36-8
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
Cas:5571-36-8
Min.Order:4 Kilogram
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
Our Advantage: 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good quali
Cas:5571-36-8
Min.Order:1 Kilogram
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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
Cas:5571-36-8
Min.Order:10 Gram
FOB Price: $100.0
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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
Cas:5571-36-8
Min.Order:100 Gram
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Type:Lab/Research institutions
inquiry(8S,13S,14S,17S)-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-ol
ethylene deltenone
Conditions | Yield |
---|---|
With tetrapropylammonium perruthennate; 4-methylmorpholine N-oxide In dichloromethane for 0.25h; Ambient temperature; | 99.3% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; orthoformic acid triethyl ester; pyridinium chlorochromate 2.) CH2Cl2; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / tetrahydrofuran; methanol / -10 °C 2: 1.) (EtO)3CH, pTsOH, 2.) pyridinium chlorochromate / 2.) CH2Cl2 View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 92 percent / H2SO4 / benzene; CH2Cl2 / 2.5 h / Heating 2: 99.3 percent / N-methylmorpholine N-oxide, (nC3H7)4NRuO4 / CH2Cl2 / 0.25 h / Ambient temperature View Scheme |
ethylene deltenone
(8S,13S,14S,17S)-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17-ol
Conditions | Yield |
---|---|
With sodium tetrahydroborate In tetrahydrofuran; methanol at 0 - 25℃; for 1.5h; Inert atmosphere; | 100% |
With sodium tetrahydroborate In methanol for 0.25h; Ambient temperature; | 98% |
With sodium hydroxide; sodium tetrahydroborate In methanol; water at 2℃; for 2.08333h; | |
With potassium borohydride; butan-1-ol at 30℃; Reagent/catalyst; Temperature; | 9.3 g |
With sodium tetrahydroborate In tetrahydrofuran; methanol at 0 - 20℃; for 1.5h; |
N,N-phenylbistrifluoromethane-sulfonimide
ethylene deltenone
17-[[(trifluoromethyl)sulfonyl]oxy]estra-5(10),9(11),16-trien-3-one cyclic 1,2-ethanediyl acetal
Conditions | Yield |
---|---|
Stage #1: ethylene deltenone With lithium hexamethyldisilazane In tetrahydrofuran at -15℃; for 0.5h; Stage #2: N,N-phenylbistrifluoromethane-sulfonimide In tetrahydrofuran at 0℃; for 3h; Further stages.; | 100% |
Stage #1: ethylene deltenone With lithium hexamethyldisilazane In tetrahydrofuran at -40 - -15℃; for 0.5h; Stage #2: N,N-phenylbistrifluoromethane-sulfonimide In tetrahydrofuran at -15 - 0℃; for 3h; Stage #3: With sodium hydrogencarbonate In tetrahydrofuran; water | 100% |
ethylene deltenone
(8S,13S,14S,17R)-17-ethynyl-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-ol
Conditions | Yield |
---|---|
In tetrahydrofuran at 0℃; | 100% |
ethylene deltenone
Conditions | Yield |
---|---|
With methanol; sodium tetrahydroborate at 20℃; | 100% |
With methanol; sodium tetrahydroborate In tetrahydrofuran at 0 - 20℃; for 1.5h; | 100% |
With methanol; sodium tetrahydroborate In tetrahydrofuran at 0 - 20℃; for 1.5h; |
sodium acetylide
ethylene deltenone
(8S,13S,14S,17R)-17-ethynyl-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-ol
Conditions | Yield |
---|---|
In tetrahydrofuran at -2 - 0℃; for 6.5h; Inert atmosphere; Industrial scale; | 99% |
In tetrahydrofuran at -2 - 0℃; for 6h; Inert atmosphere; Large scale; | 99% |
In tetrahydrofuran at 0℃; for 1h; Inert atmosphere; | 95% |
Pentafluoroethyl iodide
ethylene deltenone
3,3-ethylenedioxy-17β-hydroxy-17-(1,1,2,2,2-pentafluoroethyl)-estra-5(10),9(11)-diene
Conditions | Yield |
---|---|
Stage #1: Pentafluoroethyl iodide; ethylene deltenone In toluene at -78℃; for 0.166667h; Stage #2: With methyllithium lithium bromide In diethyl ether; toluene at -78 - 0℃; for 2.08333h; | 85% |
diethyl cyanophosphonate
ethylene deltenone
17-cyano-3,3-[1,2-ethanediylbis(oxy)]estra-5(10),9(11)-diene
Conditions | Yield |
---|---|
Stage #1: diethyl cyanophosphonate; ethylene deltenone With lithium cyanide In tetrahydrofuran; N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: With samarium diiodide In tetrahydrofuran; tert-butyl alcohol for 3.5h; Further stages.; | 79% |
Stage #1: diethyl cyanophosphonate; ethylene deltenone With lithium cyanide In tetrahydrofuran at 20℃; for 0.5h; Stage #2: With samarium diiodide; tert-butyl alcohol In tetrahydrofuran Inert atmosphere; | 79% |
ethylene deltenone
(5'R,10'R,13'S)-13'-methyl-1',2',6',7',8',12',13',14',15',16'-decahydro-17'H-spiro[1,3-dioxolane-2,3'-[5,10]epoxycyclopenta[a]phenanthren]-17'-one
Conditions | Yield |
---|---|
With 1,1,1,3,3,3-hexachloro-propan-2-one; dihydrogen peroxide In dichloromethane for 72h; | 76.1% |
With disodium hydrogenphosphate; dihydrogen peroxide; Hexafluoroacetone In dichloromethane at 0 - 4℃; for 18h; | 59.76% |
With disodium hydrogenphosphate; dihydrogen peroxide; Hexafluoroacetone In dichloromethane at 0 - 20℃; for 18h; | 53% |
ethylene deltenone
3-(ethylenedioxy)estra-5,10-epoxy-9(11)-ene-17-one
Conditions | Yield |
---|---|
With pyridine; dihydrogen peroxide; Hexafluoroacetone In dichloromethane at 20℃; for 16h; | 74% |
Conditions | Yield |
---|---|
Stage #1: 3,3-Dimethylbut-1-yne With n-butyllithium In tetrahydrofuran at -78℃; for 0.416667h; Stage #2: ethylene deltenone In tetrahydrofuran at -78 - 20℃; for 0.95h; | 74% |
Stage #1: 3,3-Dimethylbut-1-yne With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.416667h; Inert atmosphere; Stage #2: ethylene deltenone In tetrahydrofuran; hexane at -78 - 25℃; for 0.95h; Inert atmosphere; | 74% |
1,1-dibromo-3-methyl-1-butene
ethylene deltenone
estra-5(10),9(11)-dien-3-one, 17β-hydroxy-17α-(3-methyl-1-butynyl) cyclic 3-(1,2-ethanediyl acetal)
Conditions | Yield |
---|---|
Stage #1: 1,1-dibromo-3-methyl-1-butene With n-butyllithium In tetrahydrofuran; hexane at -40℃; for 2h; Metallation; Stage #2: ethylene deltenone In tetrahydrofuran; hexane at 25℃; for 8h; Alkynylation; | 71% |
[(p-methylphenyl)sulfonylmethyl]isonitrile
ethylene deltenone
17-cyano-3,3-[1,2-ethanediylbis(oxy)]estra-5(10),9(11)-diene
Conditions | Yield |
---|---|
With potassium tert-butylate In 1,2-dimethoxyethane; tert-butyl alcohol for 2.5h; | 71% |
ethylene deltenone
A
(5'R,10'R,13'S)-13'-methyl-1',2',6',7',8',12',13',14',15',16'-decahydro-17'H-spiro[1,3-dioxolane-2,3'-[5,10]epoxycyclopenta[a]phenanthren]-17'-one
B
3,3-(ethylenedioxy)-5β,10β-epoxyestra-9(11)-ene-17-one
Conditions | Yield |
---|---|
With pyridine; dihydrogen peroxide In dichloromethane at 0℃; for 18h; Inert atmosphere; | A 68% B 13% |
With pyridine; dihydrogen peroxide; Hexafluoroacetone In dichloromethane at 0 - 20℃; for 18h; optical yield given as %de; | A 56% B 18% |
With pyridine; dihydrogen peroxide; Hexafluoroacetone In dichloromethane at 0℃; for 18h; Inert atmosphere; | A 56% B 18% |
N-[(trifluoromethyl)sulfanyl]aniline
ethylene deltenone
Conditions | Yield |
---|---|
With acetyl chloride In 1-methyl-pyrrolidin-2-one at 20℃; for 15h; Inert atmosphere; | 65% |
Conditions | Yield |
---|---|
Stage #1: Methyltriphenylphosphonium bromide With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.5h; Inert atmosphere; Stage #2: ethylene deltenone In tetrahydrofuran at 20℃; for 18h; Inert atmosphere; | 65% |
ethylene deltenone
Conditions | Yield |
---|---|
Stage #1: ethylene deltenone With chloro-trimethyl-silane; lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃; for 1.5h; Inert atmosphere; Sealed tube; Stage #2: With N-Bromosuccinimide In tetrahydrofuran at 0℃; for 0.5h; Inert atmosphere; Sealed tube; | 64% |
dihydrogen peroxide
ethylene deltenone
B
11β-[4-(N,N-Dimethylamino)phenyl]-17β-nitroestra-4,9-dien-3-one
Conditions | Yield |
---|---|
In diethyl ether; dichloromethane; ethyl acetate | A 53% B n/a |
methylenedimethyl sulfurane
ethylene deltenone
spiro-2'-(1'-oxacyclopropane)-17(S)-<3,3-(ethylenedioxy)-5(10),9(11)-estradiene>
Conditions | Yield |
---|---|
In tetrahydrofuran; dimethyl sulfoxide | 38.8% |
ethylene deltenone
acetylene
(8S,13S,14S,17R)-17-ethynyl-13-methyl-1,2,4,6,7,8,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2’-[1,3]dioxolan]-17-ol
Conditions | Yield |
---|---|
With potassium tert-butylate In tetrahydrofuran | |
Stage #1: acetylene With potassium tert-butylate In tetrahydrofuran at -5 - 5℃; for 1h; Stage #2: ethylene deltenone In tetrahydrofuran for 1h; |
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