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
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inquiryItems Standard Result Assay (Ursolic acid) 98%min 98.22% ----------------------------------------------------------------
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inquiry1. 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
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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
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inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese
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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 emai
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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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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
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inquiryStock products, own laboratoryAppearance:Red to light yellow solid powder Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
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inquiry3,6-diamino-9-[2-(methoxycarbonyl)phenyl]xanthylium chlorideAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air
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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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inquiryhigh 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
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Supply top quality products with a reasonable price Application:api
Rhodamine 123Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai
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Conditions | Yield |
---|---|
With hydrogenchloride 1.) reflux, 6 h, 2.) RT, overnight; | |
With sulfuric acid at 50℃; Esterification; | |
With acetyl chloride at 50℃; Fischer esterification; |
Dihydrorhodamine 123
rhodamin 123
Conditions | Yield |
---|---|
In acetone Electrochemical reaction; |
rhodamin 123
Conditions | Yield |
---|---|
With bromine In ethanol for 73.5h; Ambient temperature; | 100% |
potassium tetrachloroplatinate(II)
rhodamin 123
bis(rhodamine 123)tetrachloroplatinate(II) tetrahydrate
Conditions | Yield |
---|---|
In water stirring (30 min, pptn.); filtration, washing (H2O, 1N HCl, EtOH, ether), drying (vac.); elem. anal.; | 78% |
rhodamin 123
Conditions | Yield |
---|---|
With Iodine monochloride In tetrahydrofuran for 5h; Ambient temperature; | 76% |
rhodamin 123
Conditions | Yield |
---|---|
With bromine In ethanol at -40℃; for 2h; | 76% |
rhodamin 123
Conditions | Yield |
---|---|
With bromine In ethanol for 1h; | 62% |
rhodamin 123
Conditions | Yield |
---|---|
With bromine In ethanol for 2h; Ambient temperature; | 56.45% |
rhodamin 123
Conditions | Yield |
---|---|
With Iodine monochloride In tetrahydrofuran for 5h; Ambient temperature; | 34% |
rhodamin 123
Dihydrorhodamine 123
Conditions | Yield |
---|---|
With sodium tetrahydroborate In dichloromethane; water for 1h; |
rhodamin 123
Conditions | Yield |
---|---|
With peracetic acid; sodium (¹²⁵I)iodide; [131I]-sodium iodide; acetate buffer; sodium acetate for 1h; Ambient temperature; Yield given; |
rhodamin 123
Conditions | Yield |
---|---|
With sodium perchlorate In water cation exchange; |
p-Aminophenethylamine
rhodamin 123
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 12h; amidation; |
4-Aminobutanol
rhodamin 123
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 12h; amidation; |
rhodamin 123
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 96h; amidation; |
rhodamin 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 34 percent / ICl / tetrahydrofuran / 5 h / Ambient temperature 2: 70 percent / diisopropylethylamine / CH2Cl2 / 4 h View Scheme |
rhodamin 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 34 percent / ICl / tetrahydrofuran / 5 h / Ambient temperature 2: diisopropylethylamine / CH2Cl2 / 4 h View Scheme |
rhodamin 123
4'-iododihydrorhodamine 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 11 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 5 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / Ambient temperature View Scheme |
rhodamin 123
2'-iododihydrorhodamine 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 21 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 44 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / Ambient temperature View Scheme |
rhodamin 123
4',7'-diiododihydrorhodamine 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 12 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 23 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / CH2Cl2; CCl4 / 1 h / Ambient temperature View Scheme |
rhodamin 123
2',7'-diiododihydrorhodamine 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 17 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 9 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / methanol; CH2Cl2; CCl4 / 1 h / Ambient temperature View Scheme | |
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 25 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / CH2Cl2; CCl4 / 1 h / Ambient temperature View Scheme |
rhodamin 123
2',4',7'-triiododihydrorhodamine 123
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: NaBH4 / CH2Cl2; H2O / 1 h 2: 7 percent / NaI, N-chlorosuccinimide (NClS), 0.2 M NH4OAc / CH2Cl2; CCl4 / 1 h / Ambient temperature View Scheme |
Conditions | Yield |
---|---|
With sodium cyanoborohydride; acetic acid In methanol; water at 37℃; for 16h; |
Conditions | Yield |
---|---|
In water at 14.84℃; Thermodynamic data; Temperature; |
heptakis(2,6-di-O-methyl)cyclomaltoheptaose
rhodamin 123
Conditions | Yield |
---|---|
In water at 14.84℃; Thermodynamic data; Temperature; |
rhodamin 123
Conditions | Yield |
---|---|
In dichloromethane; water at 20℃; for 48h; |
Conditions | Yield |
---|---|
In dichloromethane; water at 20℃; for 48h; |
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