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3-nitrotoluene; m-nitrotoluene
Brief introduction: 3-nitrotoluene is obtained from toluene nitrated with mixed acid below 50℃, then fractionated and refined. With the different reaction conditions and catalysts, different products can be obtained, such as o-nitrotoluene, p-nitrotoluene, m-nitrotoluene, 2, 4-dinitrotoluene and 2, 4, 6-trinitrotoluene. Nitrotoluene and dinitrotoluene are important intermediates in medicine, dyes and pesticides. In the general reaction conditions, there are more ortho products than para-sites in the three intermediates of nitrotoluene, and para-sites are more than para-sites. At present, the domestic market has a great demand for adjacent and para-nitrotoluene, so the localization nitration of toluene is studied both at home and abroad, hoping to increase the yield of adjacent and para-toluene as much as possible. However, there is no ideal result at present, and the formation of a certain amount of m-nitrotoluene is inevitable. Because the development and utilization of p-nitrotoluene has not kept up in time, the by-product of nitrotoluene nitration can only be sold at a low price or a large amount of inventory is overstocked, resulting in a great consumption of chemical resources.
CAS number: 99-08-1
Molecular formula: C7H7NO2
Molecular weight: 137.14
EINECS number: 202-728-6
Structural formula：
Related categories: Organic chemical raw materials; Nitro compounds.
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4-nitrotoluene; p-nitrotoluene
English name：4-Nitrotoluene；
CAS number: 99-99-0
Molecular formula: C7H7NO2
Molecular weight: 137.14
EINECS number: 202-808-0
Structural formula:
Related categories: Organic chemical raw materials; Nitro compounds; Pesticide intermediate.
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DCPTA
Chemical name：2-(3,4-dichlorophenoxy)-triethylamine
CAS number: 65202-07-5
Molecular formula: C12H17Cl2NO
Molecular weight: 262.18
Constitutional formula：
Related categories: Other chemical products; Pesticide intermediates; Pesticides;Feed additives;Organic raw materials; Agricultural raw materials; Agricultural animal raw materials; Agricultural chemical raw materials; Ingredients; Pesticide raw materials;Agrochemicals
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DEET
Chemical name: N,N-Diethyl-m-toluamide
CAS number: 134-62-3
Molecular formula: C12H17NO
Molecular weight: 191.27
EINECS number: 205-149-7
Structural formula
Related categories: Insecticides; Organic intermediates; Pesticide intermediates.
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Acrylic acid, ester series polymerization inhibitor Phenothiazine
Chemical name: phenothiazine
Chemical alias: Diphenylamine sulfide, thioxanthene
Molecular formula: C12H9NO
Structure formula:
Molecular weight: 199.28
CAS NO.: 92-84-2
Melting point: 182-187 ℃
Density: 1.362
Boiling point: 371 ℃
Water melting property: 2 mg/L (25℃)
Properties: Light yellow or light yellow-green crystalline powder, melting point 183~186℃, boiling point 371℃, sublimable, slightly soluble in water, ethanol, soluble in ether, very soluble in acetone and benzene. It has a faint peculiar smell. It is easy to oxidize and darken when stored in the air for a long time, which is slightly irritating to the skin. -
Propithiazole
Chemical name: 2 – [2 – (1 – propyl chloride ring) – 3 – (2 – chlorobenzene) – 2 – hydroxypropyl) – 1, 2, 4-trichlorobenzene – dihydro – 3 h – 1-3-3 – ketone of sulfur
English name：Prothioconazole；
CAS number: 178928-70-6
Molecular formula: C14H15Cl2N3OS
Molecular weight: 344.26
EINECS number: 605-841-2
Structural formula：
Related categories: pesticide raw materials; Fungicides; Organic chemical raw materials.
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Tebufenozide
Chemical name：(4-ethylbenzoyl)
CAS number:112410-23-8
Molecular formula: C22H28N2O2
Molecular weight:352.47
EINECS Number:412-850-3
Constitutional formula：
Related categories:Pesticides; Insecticide (mite); Organic nitrogen insecticide; Pesticide raw materials; The original pesticide; Agricultural residues, veterinary drugs and fertilizers; Organochlorine insecticides; Insecticides; Pesticide intermediates; Agricultural raw materials; Medical raw materials;
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5-isosorbide mononitrate
Chemical name: isosorbide 5-mononitrate; 3, 6-didehydrate-D-sorbitol-5-nitrate;
CAS number: 16051-77-7
Molecular formula: C6H9NO6
Molecular weight: 191.14
EINECS number: 240-197-2
Structural formula：
Related categories: raw materials; Pharmaceutical intermediates; Pharmaceutical raw materials.
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2-hydroxypyridine-N-oxide (HOPO)
Chemical name: 2-hydroxypyridine-n-oxide;
CAS number: 13161-30-3
Molecular formula: C5H5NO2
Molecular weight: 111.1
EINECS number: 236-100-88
Structural formula：
Related categories: Pharmaceutical intermediates; Polypeptide reagent – shrinkage mixture; Organic chemical raw materials.
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Acrylic acid, ester series polymerization inhibitor Hydroquinone
Chemical name: hydroquinone
Synonyms: Hydrogen, HYDROXYQUINOL; HYDROCHINONE; HYDROQUINONE; AKOSBBS-00004220; hydroquinone–1,4-benzenediol; Idrochinone; Melanex
Molecular formula: C6H6O2
Structure formula:
Molecular weight: 110.1
CAS NO.： 123-31-9
EINECS No.: 204-617-8
Melting point : 172 to 175 ℃
Boiling point: 286 ℃
Density: 1.328g /cm³
Flash point: 141.6 ℃
Application area: hydroquinone is widely used in medicine, pesticides, dyes and rubber as important raw materials, intermediates and additives, mainly used in developer, anthraquinone dyes, azo dyes, rubber antioxidant and monomer inhibitor, food stabilizer and coating antioxidant, petroleum anticoagulant, synthetic ammonia catalyst and other aspects.
Character: White crystal, discoloration when exposed to light. Has a special smell.
Solubility: It is easily soluble in hot water, soluble in cold water, ethanol and ether, and slightly soluble in benzene. -
![Pyrrolo[2,3-d]pyrimidin-4-ol 98%min](https://www.csnvchem.com/uploads/Pyrrolo23-dpyrimidin-4-ol1.jpg)
Pyrrolo[2,3-d]pyrimidin-4-ol 98%min
Product Name: Pyrrolo[2,3-d]pyrimidin-4-ol
Synonyms: 7-DEAZAHYPOXANTHINE, 7-DEAZA-6-HYDROXY PURINE; Pyrrolo[2,3-d]pyrimidin-4-ol, 1,7-Dihydro-pyrrolo[2,3-d...,7H-Pyrrolo[2,3-d]pyrimidin-4-ol
7H-PYRROLO[2,3-D]PYRIMIDIN-4-OL,4H-Pyrrolo[2,3-d]pyriMidin-4-one,4-HYDROXYPYRROLO[2,3-D]PYRIMIDINE, 4-hydroxypyrrolo[2,3-d]pyrimidine,3H-PYRROLO[2,3-D]PYRIMIDIN-4(7H)-ONE, 3H-pyrrolo[2,3-d]pyrimidin-4(7H)-one,1,7-DIHYDRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE, 1,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one
CAS RN: 3680-71-5
Molecular Formula: C6H5N3O
Molecular Weight: 135.12 >
Structural Formula:
EINECS NO.: 640-613-6
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Ethyl 4-chloro-2-methylthio-5-pyrimidinecarboxylate 98%min
Product Name: Ethyl 4-chloro-2-methylthio-5-pyrimidinecarboxylate
Synonyms: BUTTPARK 453-53;
ETHYL4-CHLORO-2-METHYLTHIO-5-PYRIMIDINECARBOXYLATE;
ETHYL 4-CHLORO-2-METHYLTHIOPYRIMIDINE-5-CARBOXYLATE;
ETHYL 4-CHLORO-2-(METHYLSULFANYL)-5-PYRIMIDINECARBOXYLATE;
2-METHYLTHIO-4-CHLORO-5-ETHOXYCARBONYLPYRIMIDINE; 4-Chloro-2-methylsulfanyl-pyrimidine-5-carboxylic acid ethyl ester; ethyl 4-chloro-2-methylthio-5-pyrimidine-carboxyl;SIEHE AV22429
CAS RN:5909-24-0
Molecular Formula: C8H9ClN2O2S
Molecular Weight: 232.69
Structural Formula:
EINECS NO.: 227-619-0
