Superiority:
NewblueCHEM--2581-34-2--High purity 3-Methyl-4-nitrophenol factory price
Our company was built in 2009 with an ISO certificate.In the past 10 years,
we have grown up as a famous fine chemicals supplier in China
And we had established stable business
relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.
Our main business covers the fields below:
1.Noble Metal Catalysts (Pt.Pd...)
2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...)
3.OLED intermediates (Fluorene,Carbazole,Boric acid...)
4.Pharmaceutical intermediates
About us
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
3.Supply sample
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .
Our advantage:
Q1:Can I get the free sample
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, or Paypal or L/C.
Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What’s your MOQ
A:Usually according you demand.
Q5: How about delivery leadtime
A:Delivery lead time: As soon as possible. (Chinese holiday not included)
Q6:Is there a discount
A:Different quantity has different discount.
Q7: How to contact us
A:You can chat with us by Trademanager,Email,WhatsAPP,Wechat.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
Details:
NewblueCHEM--2581-34-2--High purity 3-Methyl-4-nitrophenol factory price
Our company was built in 2009 with an ISO certificate.In the past 10 years,
we have grown up as a famous fine chemicals supplier in China
And we had established stable business
relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.
Details
3-Methyl-4-nitrophenol
English Synonyms: 3-methyl-4-nitro-pheno; 4-Nitro-1-hydroxy-3-methylbenzene; 4-Nitro- -Methyl-4-nitrophenol; m-Cresol, 4-nitro-; Phenol,
CAS number: 2581-34-2
Molecular formula: C7H7NO3
Molecular weight: 153.14
EINECS No. 219-952-5
Related categories: Aromatic Phenols; Phenoles and thiophenoles; Pesticide intermediates; Pesticide intermediates; Organophosphorus pesticides; Other oxygenates; Standards; Pharmaceutical intermediates; Reagents and supplements
Mol file: 2581-34-2.mol
4-nitro-m-cresol
4-nitro-m-cresol properties
Melting point 125-130 ° C (lit.)
Boiling point 200 ℃ (decomposition)
Flash point of 110 ℃
Soluble in water (1.34g / L).
BRN 1868105
CAS Database 2581-34-2 (CAS DataBase Reference)
NIST chemical information 4-Nitro-5-methylphenol (2581-34-2)
EPA chemical information Phenol, 3-methyl-4-nitro- (2581-34-2)
Use of 4-nitro-m-cresol and synthesis method
Chemical acicular or columnar yellow crystals. In the air, the light does not change color. Very soluble in ethanol, ether, chloroform and benzene. Hard to dissolve in cold water.
Use as a pharmaceutical intermediates
Nitro-m-cresol, also known as 3-methyl-4-nitrophenol (abbreviated as 4-nitro), is an intermediate of fenitrothion.
Uses a wide range of uses, mainly for the manufacture of pesticides fenitrothion (an efficient, low toxicity, low residual excellent organophosphate insecticide).
Production methods to m-cresol as raw material, available nitrosation oxidation or direct nitrification Preparation. 1. Hydrochloride nitrosation oxidation of m-cresol with 15% hydrochloric acid, sodium nitrite, sodium hydroxide at a reaction temperature (0 ± 3) ℃ under reaction to obtain a nitroso compound. Then in 38% nitric acid at (40 ± 2) ℃ oxidation, that is, too. Yield 87%. 2. One-step nitric acid will be m-cresol at -5 ~ 0 ° C 20% nitric acid and 40% sodium nitrite solution, stirred for 10 minutes, warmed to 30 ℃ and incubated 2h, that is, too. Yield 99%. There is also a method called hydroxyl protection nitrification.
Production methods of nitro-m-cresol preparation nitrosation oxidation and one-step nitration. Because of one-step nitration method consumption of larger amount of phenol, higher cost, so the industrial nitrosation oxidation method. The reaction equation shown in the figure
In the nitrosation kettle pre-prepared dilute nitric acid added in a strong mixing and low temperature drop cresol and sodium nitrite mixture. After the addition of low temperature to maintain a certain reaction time, the material into the oxidation reactor slowly warming oxidation. With Na2CO3 liquid to absorb a large amount of release of NOx, when the temperature inside the oxidation reactor up to 47 ℃, the release of NOx almost clean, cooled to below 25 ℃, centrifuged into the centrifuge to give crude 4-nitrate. After the metered analysis was added to the refining kettle, heated to dissolve by toluene, crystallized at low temperature, and then separated in an explosion-proof centrifuge to obtain fine 4-nitro.
Our main business covers the fields below:
1.Noble Metal Catalysts (Pt.Pd...)
2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...)
3.OLED intermediates (Fluorene,Carbazole,Boric acid...)
4.Pharmaceutical intermediates
Packing:
About us
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
3.Supply sample
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .
Delivery:
Our advantage:
Q1:Can I get the free sample
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, or Paypal or L/C.
Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What’s your MOQ
A:Usually according you demand.
Q5: How about delivery leadtime
A:Delivery lead time: As soon as possible. (Chinese holiday not included)
Q6:Is there a discount
A:Different quantity has different discount.
Q7: How to contact us
A:You can chat with us by Trademanager,Email,WhatsAPP,Wechat.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
Our Factory