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:842-07-9
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:842-07-9
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryHebei yanxi chemical co., LTD is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carb
Cas:842-07-9
Min.Order:1 Kilogram
FOB Price: $1.0 / 3.0
Type:Manufacturers
inquiryGood products, good service. We have professional sales team working on sales service for 15 years. Good products can win good market but can not stand long without good service. We have strict sales regulation and service procedure to make
Cas:842-07-9
Min.Order:1 Metric Ton
Negotiable
Type:Trading Company
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
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Cas:842-07-9
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,
Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
Shanghai 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:842-07-9
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
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:842-07-9
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:842-07-9
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
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:842-07-9
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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:842-07-9
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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
Our 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 present
Cas:842-07-9
Min.Order:3 Kilogram
FOB Price: $6.8 / 9.4
Type:Trading Company
inquirySudan I CAS:842-07-9 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 intermediates, ster
Cas:842-07-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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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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
Product name: Sudan I, Solvent Yellow 14 CAS No: 842-07-9 Molecular Formula: C16H12N2O Molecular Weight: 248.28 Appearance: Dark red powder Biol… Superiority 1.Powerful R & D team 2.The ability of quantized producti
Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter
Cas:842-07-9
Min.Order:25 Kilogram
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
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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Cas:842-07-9
Min.Order:0 Metric Ton
Negotiable
Type:Other
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:842-07-9
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryTianfu Chemical, built in 2009, is a professional supplier for API materials in China. With 10 years development, we have bulit our own factory and lab to produce a certain of products. And we have established stable business relationship
Cas:842-07-9
Min.Order:1 Kilogram
FOB Price: $200.0
Type:Lab/Research institutions
inquiryProduct name: Sudan-1 CAS No.:842-07-9 Molecule Formula:C16H12N2O Molecule Weight:248.28 Purity: 99.0% Package: 25kg/drum Description:Yellow powder Manufacture Standards:Enterprise Standard TESTING ITEMS SPECIFICA
Cas:842-07-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct 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,
Hangzhou 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.
High quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle
Cas:842-07-9
Min.Order:1 Metric Ton
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Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With hydrogenchloride; sodium nitrite In water at 20℃; for 0.5h; | 99% |
Stage #1: aniline With hydrogenchloride; sodium nitrite In water at 20℃; for 0.333333h; Green chemistry; Stage #2: β-naphthol In water at 20℃; for 0.666667h; Green chemistry; | 99% |
Stage #1: aniline With hydrogenchloride In water at 0 - 5℃; for 0.0833333h; Stage #2: β-naphthol In water for 0.0833333h; | 98% |
Conditions | Yield |
---|---|
With sodium hydroxide In water at 0℃; for 0.00555556h; Flow reactor; Large scale; Green chemistry; | 95% |
With sodium hydroxide In ethanol; water for 0.166667h; Ambient temperature; | 93% |
With sodium hydroxide In water for 0.35h; | 89% |
Conditions | Yield |
---|---|
With sodium hydroxide In water for 0.333333h; | 93% |
aniline
β-naphthol
A
Sudan I
B
1-phenyl-azo-2-naphthol
Conditions | Yield |
---|---|
Stage #1: aniline With hydrogenchloride In water at 0 - 5℃; for 0.0833333h; Stage #2: With 1-(4-(nitrosooxy)butyl)-3-methylimidazolium chloride In water at 0 - 5℃; for 0.416667h; Stage #3: β-naphthol With sodium hydroxide In water at 0℃; for 0.416667h; | A 87% B n/a |
Conditions | Yield |
---|---|
With trifluoroacetic acid In benzene at 65℃; for 3h; | 84% |
Conditions | Yield |
---|---|
With potassium carbonate In dichloromethane at 20℃; for 8h; | 80% |
Conditions | Yield |
---|---|
With aniline In acetonitrile added aniline to a soln. of Ru-complex; stirred for 30 min at room temp.; evapd. to dryness; extracted with ice-cold water; filtrated; added β-naphthol with stirring over a period of 15 min; sepd.; recrystd. from methanol; dried residue obtained after water extraction; dissolved in CH2Cl2; added hexane; filtered; dried in vacuo; elem. anal.; | A 60% B n/a |
Conditions | Yield |
---|---|
In benzene for 2h; Heating; | 56% |
In ethanol for 72h; Product distribution; Ambient temperature; further 1,3 diaryl-1-nitrosoureas; | 25.3% |
With sodium hydroxide In ethanol for 0.0833333h; Ambient temperature; | 58 % Spectr. |
In ethanol for 72h; Ambient temperature; | 25.3 % Spectr. |
β-naphthol
N'-(4-methoxy-phenyl)-N-phenyl-diazene-N-oxide
A
2-hydroxy-4-methoxyazobenzene
B
Sudan I
Conditions | Yield |
---|---|
In benzene for 3h; Irradiation; | A 45% B 12% |
1-Phenyl-1-phenylazo-eth-1-yl-hydroperoxide; compound with benzene
β-naphthol
Sudan I
Conditions | Yield |
---|---|
Product distribution; Mechanism; Ambient temperature; reactions of α-azohydroperoxides with solvents; | 44% |
β-naphthol
(4-methoxyphenyl)phenyldiazene 1-oxide
A
2-hydroxy-4-methoxyazobenzene
B
Sudan I
D
1-(4-methoxyphenylazo)naphthalen-2-ol
Conditions | Yield |
---|---|
In benzene for 4h; Irradiation; | A 38% B 8% C 8% D 17% |
(4-methoxyphenyl)phenyldiazene 1-oxide
A
2-hydroxy-4-methoxyazobenzene
B
Sudan I
D
1-(4-methoxyphenylazo)naphthalen-2-ol
Conditions | Yield |
---|---|
With β-naphthol In benzene for 4h; Irradiation; | A 38% B 8% C 8% D 17% |
Conditions | Yield |
---|---|
Stage #1: 4-oxo-4-(2-phenylhydrazinyl)butanoic acid With methanol; ammonium cerium(IV) nitrate Stage #2: β-naphthol With sodium carbonate | 32% |
C16H12N2O
β-naphthol
A
Sudan I
B
2-phenylazo-1-naphthol
C
4-Phenylazo-1-naphthol
Conditions | Yield |
---|---|
In benzene Ambient temperature; | A 26% B n/a C n/a |
pyridine
(E)-1-(phenyldiazenyl)piperidine
pyridine hydrochloride
β-naphthol
Sudan I
Conditions | Yield |
---|---|
With alkali |
Sudan I
Sudan I
Conditions | Yield |
---|---|
beim Erhitzen auf dem Schmelzpunkt; |
Sudan I
Conditions | Yield |
---|---|
With chloroform; BF3-N2O3 und Behandeln des Reaktionsprodukts mit <2>Naphthol in wss.NaOH; | |
Multi-step reaction with 2 steps 1: sodium nitrite; hydrogenchloride / water / 0.17 h / 0 °C 2: sodium hydroxide / water / 0.01 h / 0 °C / Flow reactor; Large scale; Green chemistry View Scheme |
Conditions | Yield |
---|---|
With n-Amyl nitrite; trifluoroacetic anhydride anschliessend mit wss.NaHCO3 undi mit <2>Naphthol in wss.NaOH; |
Conditions | Yield |
---|---|
beim Behandeln von Benzoldiazoniumhydroxid; |
Conditions | Yield |
---|---|
With benzene |
Conditions | Yield |
---|---|
With potassium nitrite; ethanol; water |
2-(2-bromoethoxy)tetrahydropyran
Sudan I
1-phenyl-2-{2-[2-(tetrahydro-2H-2-pyranyloxy)ethoxy]-1-naphthyl}-1-diazene
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 12h; Etherification; | 99.5% |
Conditions | Yield |
---|---|
In tetrahydrofuran (Ar), to soln. of ligand in dry THF added dropwise soln. of TlOEt at room temp., stirred for 2 h; filtered; | 99% |
Conditions | Yield |
---|---|
In toluene byproducts: NH3, C6H6; soln. of B compd. and ligand refluxed for 20 h; filtered, filtrate evapd. to dryness, recrystd. from MeOH; elem. anal.; | 92% |
Conditions | Yield |
---|---|
With acetic acid at 20℃; for 16h; Inert atmosphere; | 92% |
Conditions | Yield |
---|---|
In methanol anhydrous methanol soln. of Ph3SnCl was added to a hot methanol soln. of the arylazophenol and refluxed for 1 h, the react. mixture was concd. and cooled to room temp.;; obtained crystals were washed with petroleum ether, recrystd. from methanol, dried in vacuum over CaCl2; elem. anal.;; | 90% |
[Ru(p-cymene)Cl2]2
Sudan I
(η6-p-cymene)RuClC10H6ON2Ph
Conditions | Yield |
---|---|
With Na2CO3 In dichloromethane Ru-complex was treated with ligand in the presence of Na2CO3 in CH2Cl2 with stirring for 4 h at 25°C under N2; washed with n-hexane, dried under vac.; elem. anal.; | 90% |
Conditions | Yield |
---|---|
With sodium hydroxide In methanol stirring (10 h); filtn., washing (MeOH), recrystallization (CH2Cl2, MeOH); elem. anal.; | 90% |
Conditions | Yield |
---|---|
In ethanol; water for 4h; Reflux; | 90% |
Conditions | Yield |
---|---|
In ethanol; water for 4h; Reflux; | 83% |
Conditions | Yield |
---|---|
In toluene at -78 - 20℃; Inert atmosphere; Schlenk technique; Glovebox; | 80% |
Sudan I
Conditions | Yield |
---|---|
With potassium hexamethylsilazane In toluene at -78℃; for 12h; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
In n-heptane; toluene at -78℃; for 12h; Inert atmosphere; | 80% |
Sudan I
bis(2,2'-bipyridine)(1-(phenylazo)-2-naphtholato)ruthenium(II) perchlorate
Conditions | Yield |
---|---|
With hydrogenchloride In methanol To a soln. of complex in MeOH aq. HCl was added, heated to reflux for 12 h, the ligand and NaOH was added, refluxed for 6 h, filtered, NaClO4 in MeOH was added;; reduced in vol., ppt. was filtered, washed with H2O, ether, dried undervac.; elem. anal.;; | 75% |
Conditions | Yield |
---|---|
In benzene addn. of ligand to Me2SnCl2 in anhyd. benzene, refluxing for 6 h; hot filtn., crystn. by cooling to room temp., filtn., recrystn. from anhyd. benzene, drying in vacuo, elem. anal.; | 72% |
palladium diacetate
Sudan I
bis[1-(phenylazo)-2-naphtholato-Nβ,O]palladium(II)
Conditions | Yield |
---|---|
In chloroform stirring stoich. amts. for 12 h; collection (filtration), washing (EtOH), drying (vac.); elem. anal.; | 70% |
Conditions | Yield |
---|---|
for 4h; Reflux; | 70% |
tris(2,4-pentanedionato)ruthenium(III)
Sudan I
[Ru(CH3COCHCOCH3)(C10H6(O)N2C6H5)2]
Conditions | Yield |
---|---|
In ethylbenzene stirring (160°C, 6 h); evapn. (vac.), dichloromethane addn., chromy. (silica gel, hexane/benzene, 3/1 and hexane/benzene, 2/1), evapn.; elem. anal.; | 68% |
Sudan I
bis-1-(phenylazo)-2-naphtholate nickel(II)
Conditions | Yield |
---|---|
With sodium carbonate In methanol; water at 60℃; for 0.8h; | 67% |
With sodium carbonate In methanol at 60℃; for 8h; | 67% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0 - 20℃; | 62% |
at 200℃; | |
With sodium acetate |
Conditions | Yield |
---|---|
In ethanol; water for 4h; Reflux; | 61% |
Conditions | Yield |
---|---|
In toluene at -78 - 20℃; Inert atmosphere; Schlenk technique; Glovebox; | 57% |
Sudan I
Conditions | Yield |
---|---|
With lithium hexamethyldisilazane In toluene at -78℃; for 12h; Inert atmosphere; | 56% |
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