Product Name

  • Name

    Pendimethalin

  • EINECS 254-938-2
  • CAS No. 40487-42-1
  • Article Data23
  • CAS DataBase
  • Density 1.215 g/cm3
  • Solubility <0.5 mg/L in water
  • Melting Point 56-57 °C
  • Formula C13H19N3O4
  • Boiling Point 421 °C at 760 mmHg
  • Molecular Weight 281.312
  • Flash Point 208.4 °C
  • Transport Information UN3077 9/PG 3
  • Appearance orange-yellow crystals
  • Safety 2-24-29-37-60-61-45-16-7
  • Risk Codes 43-50/53-39/23/24/25-23/24/25-11
  • Molecular Structure Molecular Structure of 40487-42-1 (Pendimethalin)
  • Hazard Symbols IrritantXi, DangerousN, ToxicT, FlammableF
  • Synonyms 3,4-Dimethyl-2,6-dinitro-N-(1-ethylpropyl)aniline;3,4-Xylidine, 2,6-dinitro-N-(1-ethylpropyl)-;Benzenamine, 3,4-dimethyl-2,6-dinitro-N-(1-ethylpropyl)-;N-(1-Aethylpropyl)-2,6-dinitro-3,4-xylidin;Phenoxalin;
  • PSA 103.67000
  • LogP 4.83970

Synthetic route

N-(1-ethylpropyl)-2,6-dinitro-N-(3,4-dimethylphenyl)acetamide

N-(1-ethylpropyl)-2,6-dinitro-N-(3,4-dimethylphenyl)acetamide

Conditions
ConditionsYield
With sulfuric acid In water; 1,2-dichloro-ethane at 85℃; for 4h;99.1%
3,4-dimethyl-2,6-dinitroanisole
160754-06-3

3,4-dimethyl-2,6-dinitroanisole

3-aminopentane
616-24-0

3-aminopentane

Conditions
ConditionsYield
With calcium chloride at 50℃;93%
1,2,6-trinitro-o-xylene

1,2,6-trinitro-o-xylene

3-aminopentane
616-24-0

3-aminopentane

A

3,4-dimethyl-2,6-dinitro-N-(ethylpropyl) aniline

3,4-dimethyl-2,6-dinitro-N-(ethylpropyl) aniline

B

prowl
40487-42-1

prowl

Conditions
ConditionsYield
In methanolA 91%
B n/a
N-(1-ethylpropyl)-3,4-dimethyl-benzenamine
56038-89-2

N-(1-ethylpropyl)-3,4-dimethyl-benzenamine

chlorobenzene
108-90-7

chlorobenzene

Conditions
ConditionsYield
With sulfuric acid; nitric acid In water; 1,2-dichloro-ethane
4-amino-o-xylene
95-64-7

4-amino-o-xylene

A

N-(1-ethylpropyl)-N,2,6-trinitro-3,4-xylidine
73215-09-5

N-(1-ethylpropyl)-N,2,6-trinitro-3,4-xylidine

B

prowl
40487-42-1

prowl

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2.1: nitric acid / 30 °C
2.2: 30 - 60 °C
View Scheme
4-amino-o-xylene
95-64-7

4-amino-o-xylene

A

prowl
40487-42-1

prowl

B

C13H17N3O4
1417827-06-5

C13H17N3O4

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2.1: nitric acid / 30 °C
2.2: 30 - 60 °C
3.1: 0.17 h / 180 °C
View Scheme
Multi-step reaction with 3 steps
1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
3: 0.17 h / 180 °C
View Scheme
4-amino-o-xylene
95-64-7

4-amino-o-xylene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
View Scheme
Multi-step reaction with 3 steps
1.1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2.1: nitric acid / 30 °C
2.2: 30 - 60 °C
3.1: iron(III) chloride; hydrogenchloride / 3 h / 75 °C
View Scheme
Multi-step reaction with 3 steps
1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
3: iron(III) chloride; hydrogenchloride / 3 h / 75 °C
View Scheme
pentan-3-one
96-22-0

pentan-3-one

A

N-(1-ethylpropyl)-N,2,6-trinitro-3,4-xylidine
73215-09-5

N-(1-ethylpropyl)-N,2,6-trinitro-3,4-xylidine

B

prowl
40487-42-1

prowl

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2.1: nitric acid / 30 °C
2.2: 30 - 60 °C
View Scheme
pentan-3-one
96-22-0

pentan-3-one

A

prowl
40487-42-1

prowl

B

C13H17N3O4
1417827-06-5

C13H17N3O4

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2.1: nitric acid / 30 °C
2.2: 30 - 60 °C
3.1: 0.17 h / 180 °C
View Scheme
Multi-step reaction with 3 steps
1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
3: 0.17 h / 180 °C
View Scheme
pentan-3-one
96-22-0

pentan-3-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
View Scheme
Multi-step reaction with 3 steps
1.1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2.1: nitric acid / 30 °C
2.2: 30 - 60 °C
3.1: iron(III) chloride; hydrogenchloride / 3 h / 75 °C
View Scheme
Multi-step reaction with 3 steps
1: platinum on carbon; naphthalene-2-sulfonate; hydrogen / 1 h / 60 - 70 °C / 3750.38 - 7500.75 Torr / Autoclave; Inert atmosphere
2: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
3: iron(III) chloride; hydrogenchloride / 3 h / 75 °C
View Scheme
N-(1-ethylpropyl)-3,4-dimethyl-benzenamine
56038-89-2

N-(1-ethylpropyl)-3,4-dimethyl-benzenamine

A

N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

B

N-(1-ethylpropyl)-N,2,6-trinitro-3,4-xylidine
73215-09-5

N-(1-ethylpropyl)-N,2,6-trinitro-3,4-xylidine

C

prowl
40487-42-1

prowl

Conditions
ConditionsYield
Stage #1: N-(1-ethylpropyl)-3,4-dimethyl-benzenamine With nitric acid at 30℃;
Stage #2: at 30 - 60℃; Overall yield = 89 %;
N-(1-ethylpropyl)-3,4-dimethyl-benzenamine
56038-89-2

N-(1-ethylpropyl)-3,4-dimethyl-benzenamine

A

prowl
40487-42-1

prowl

B

C13H17N3O4
1417827-06-5

C13H17N3O4

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
2: 0.17 h / 180 °C
View Scheme
N-(1-ethylpropyl)-3,4-dimethyl-benzenamine
56038-89-2

N-(1-ethylpropyl)-3,4-dimethyl-benzenamine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: nitric acid / 30 °C
1.2: 30 - 60 °C
2.1: iron(III) chloride; hydrogenchloride / 3 h / 75 °C
View Scheme
Multi-step reaction with 2 steps
1: nitric acid / 1,2-dichloro-ethane; water / 1 h / 60 °C
2: iron(III) chloride; hydrogenchloride / 3 h / 75 °C
View Scheme
Multi-step reaction with 3 steps
1: 5 h / 110 °C
2: nitric acid / 1,2-dichloro-ethane / 7 h / 40 °C
3: sulfuric acid / 1,2-dichloro-ethane; water / 4 h / 85 °C
View Scheme
N-(1-ethylpropyl)-3,4-dimethyl-benzenamine
56038-89-2

N-(1-ethylpropyl)-3,4-dimethyl-benzenamine

A

N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

B

prowl
40487-42-1

prowl

Conditions
ConditionsYield
With nitric acid In water; 1,2-dichloro-ethane at 60℃; for 1h; Temperature; Concentration; Reagent/catalyst; Overall yield = 97 %; Overall yield = 0.54 kg;
Stage #1: N-(1-ethylpropyl)-3,4-dimethyl-benzenamine With nitric acid at 30℃;
Stage #2: at 30 - 60℃; for 4h; Overall yield = 89 %;
N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

A

prowl
40487-42-1

prowl

B

C13H17N3O4
1417827-06-5

C13H17N3O4

Conditions
ConditionsYield
at 180℃; for 0.166667h;
N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

N-nitroso-N-(1-ethylpropyl)-2,6-dinitro-3,4-dimethyl-benzenamine

Conditions
ConditionsYield
With hydrogenchloride; iron(III) chloride at 75℃; for 3h;

A

N-(1-ethylpropyl)-3,4-dimethyl-2-nitrobenzene-1,6-diamine
66382-22-7

N-(1-ethylpropyl)-3,4-dimethyl-2-nitrobenzene-1,6-diamine

B

N-(1-ethylpropyl)-3-formyl-4-methyl-2-nitro-6-nitrosobenzenamine

N-(1-ethylpropyl)-3-formyl-4-methyl-2-nitro-6-nitrosobenzenamine

Conditions
ConditionsYield
With sodium sulfide; sodium hydrogencarbonate In methanol; water for 16h; Ambient temperature;A 56%
B 15.1%
methanol
67-56-1

methanol

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

2,3-dimethyl-5-nitro-6-(hydroxyamino)phenol

2,3-dimethyl-5-nitro-6-(hydroxyamino)phenol

C

5,6-dimethyl-7-nitrobenzimidazole

5,6-dimethyl-7-nitrobenzimidazole

D

N-propyl-2-nitro-6-amino-3,4-xylidine

N-propyl-2-nitro-6-amino-3,4-xylidine

E

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

F

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

Conditions
ConditionsYield
With titanium(IV) oxide In water at 25℃; for 7h; Mechanism; Irradiation; also in absence of TiO2; rate of disappearance of pendimethalin during irradiation;
methanol
67-56-1

methanol

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

5,6-dimethyl-7-nitrobenzimidazole

5,6-dimethyl-7-nitrobenzimidazole

C

N-propyl-2-nitro-6-amino-3,4-xylidine

N-propyl-2-nitro-6-amino-3,4-xylidine

D

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

Conditions
ConditionsYield
With titanium(IV) oxide In water at 25℃; for 7h; Irradiation; Further byproducts given;
methanol
67-56-1

methanol

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

5,6-dimethyl-7-nitrobenzimidazole

5,6-dimethyl-7-nitrobenzimidazole

C

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

D

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

Conditions
ConditionsYield
With titanium(IV) oxide In water at 25℃; for 7h; Irradiation; Further byproducts given;

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

2,3-dimethyl-5-nitro-6-(hydroxyamino)phenol

2,3-dimethyl-5-nitro-6-(hydroxyamino)phenol

C

5,6-dimethyl-7-nitrobenzimidazole

5,6-dimethyl-7-nitrobenzimidazole

D

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

Conditions
ConditionsYield
With methanol; titanium(IV) oxide In water at 25℃; for 7h; Irradiation; Further byproducts given;

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

2,3-dimethyl-5-nitro-6-(hydroxyamino)phenol

2,3-dimethyl-5-nitro-6-(hydroxyamino)phenol

C

N-propyl-2-nitro-6-amino-3,4-xylidine

N-propyl-2-nitro-6-amino-3,4-xylidine

D

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

Conditions
ConditionsYield
With methanol; titanium(IV) oxide In water at 25℃; for 7h; Irradiation; Further byproducts given;

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

5,6-dimethyl-7-nitrobenzimidazole

5,6-dimethyl-7-nitrobenzimidazole

C

N-propyl-2-nitro-6-amino-3,4-xylidine

N-propyl-2-nitro-6-amino-3,4-xylidine

D

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

Conditions
ConditionsYield
With methanol; titanium(IV) oxide In water at 25℃; for 7h; Irradiation; Further byproducts given;

A

2-amino-6-nitro-3,4-xylidine

2-amino-6-nitro-3,4-xylidine

B

5,6-dimethyl-7-nitrobenzimidazole

5,6-dimethyl-7-nitrobenzimidazole

C

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

2,2,4,5-tetramethyl-7-nitrodihydrobenzimidazole

D

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

1-(1-ethylpropyl)-5,6-dimethyl-7-nitrobenzimidazole

Conditions
ConditionsYield
With methanol; titanium(IV) oxide In water at 25℃; for 7h; Irradiation; Further byproducts given;
2-Amino-6-nitro-N-(1-ethylpropyl)-3,4-xylidine

2-Amino-6-nitro-N-(1-ethylpropyl)-3,4-xylidine

Conditions
ConditionsYield
With sodium sulfide; sodium hydrogencarbonate In methanol at 20℃; for 3h; Reduction;
N2-(1-ethyl-propyl)-4,5-dimethyl-benzene-1,2,3-triamine

N2-(1-ethyl-propyl)-4,5-dimethyl-benzene-1,2,3-triamine

Conditions
ConditionsYield
In water; acetone at 28℃; Electrochemical reaction;
With sodium tetrahydroborate at 20℃; Kinetics; Reagent/catalyst;
amino-3-pentane

amino-3-pentane

2,6-dinitro-3,4-dimethyl-phenyl-benzylether

2,6-dinitro-3,4-dimethyl-phenyl-benzylether

2,6-dinitro-3,4-dimethylphenol
4097-61-4

2,6-dinitro-3,4-dimethylphenol

Conditions
ConditionsYield
In di-isopropyl ether; water; isopropyl alcohol
N,N-dimethyl-formamide dimethyl acetal
4637-24-5

N,N-dimethyl-formamide dimethyl acetal

3-[(1-ethylpropyl)amino]-N,N,6-trimethyl-2,4-dinitrostyrylamine

3-[(1-ethylpropyl)amino]-N,N,6-trimethyl-2,4-dinitrostyrylamine

Conditions
ConditionsYield
In methanol
N-(1-ethylpropyl)-3,4-dimethyl-2-nitrobenzene-1,6-diamine
66382-22-7

N-(1-ethylpropyl)-3,4-dimethyl-2-nitrobenzene-1,6-diamine

Conditions
ConditionsYield
With sodium sulfide nonahydrate; sodium hydrogencarbonate In ethanol; water

Pendimethalin Specification

The IUPAC name of 3,4-Dimethyl-2,6-dinitro-N-(1-ethylpropyl)-benzenamine is 3,4-dimethyl-2,6-dinitro-N-pentan-3-ylaniline. With the CAS registry number 40487-42-1, it is also named as 3,4-Xylidine, 2,6-dinitro-N-(1-ethylpropyl)-. The product's categories are Herbicide; Dinitroaniline Pesticides & Metabolites; N-PAlphabetic; P; PA - PEN. It is orange-yellow crystals which is toxic. When heated to decomposition it emits toxic fumes of NOx. So the storage environment should be well- ventilated, low-temperature and dry. Keep this chemical separate from raw materials of food.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 5.56; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.56; (4)ACD/LogD (pH 7.4): 5.56; (5)ACD/BCF (pH 5.5): 9973.73; (6)ACD/BCF (pH 7.4): 9973.73; (7)ACD/KOC (pH 5.5): 25349.63; (8)ACD/KOC (pH 7.4): 25349.63; (9)#H bond acceptors: 7; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 6; (12)Index of Refraction: 1.58; (13)Molar Refractivity: 77.09 cm3; (14)Molar Volume: 231.5 cm3; (15)Surface Tension: 47.8 dyne/cm; (16)Enthalpy of Vaporization: 67.5 kJ/mol; (17)Vapour Pressure: 2.69E-07 mmHg at 25°C; (18)Rotatable Bond Count: 4; (19)Exact Mass: 281.137556; (20)MonoIsotopic Mass: 281.137556; (21)Topological Polar Surface Area: 104; (22)Heavy Atom Count: 20; (23)Complexity: 349.

Preparation of 3,4-Dimethyl-2,6-dinitro-N-(1-ethylpropyl)-benzenamine: It can be obtained by alkylation and nitration of 3,4-aminodimethylbenzene.

Uses of 3,4-Dimethyl-2,6-dinitro-N-(1-ethylpropyl)-benzenamine: It is a herbicides used in premergence and postemergence application to control annual grasses and certain broadleaf weeds. So it protects crops like wheat, corn, soybeans potatoes, cabbage, peas, carrots and asparagus. It also can be used to produce N2-(1-ethyl-propyl)-4,5-dimethyl-3-nitro-benzene-1,2-diamine and 3-(1-ethyl-propylamino)-6-methyl-2-nitro-4-nitroso-benzaldehyde. This reaction needs reagent sodium-sulphide nonahydrate, sodium bicarbonate and solvent H2O, methanol at ambient temperature. The reaction time is 16 hours. The yield is 56%.

When you are using this chemical, please be cautious about it as the following:
It is highly flammable, so people should keep it away from sources of ignition. It is not only toxic by inhalation, in contact with skin and if swallowed, but also very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. What's more, it has danger of very serious irreversible effects. So people should avoid contact with skin and not empty into drains. If you want to contact this product, you must wear suitable gloves. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) This material and its container must be disposed of as hazardous waste. Avoid release to the environment. Refer to special instructions / safety data sheets.

People can use the following data to convert to the molecule structure. 
1. SMILES:[O-][N+](=O)c1c(c(cc([N+]([O-])=O)c1NC(CC)CC)C)C
2. InChI:InChI=1/C13H19N3O4/c1-5-10(6-2)14-12-11(15(17)18)7-8(3)9(4)13(12)16(19)20/h7,10,14H,5-6H2,1-4H3
3. InChIKey:CHIFOSRWCNZCFN-UHFFFAOYAS

The following are the toxicity data which has been tested.

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 oral > 5gm/kg (5000mg/kg)   Pesticide Manual. Vol. 9, Pg. 656, 1991.
mouse LD50 intraperitoneal 220mg/kg (220mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY)
Indian Journal of Experimental Biology. Vol. 25, Pg. 463, 1987.
 
mouse LD50 oral 1340mg/kg (1340mg/kg)   Pesticide Manual. Vol. 9, Pg. 656, 1991.
rabbit LD50 skin 2260mg/kg (2260mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C254, 1991.
rat LD50 intraperitoneal 500mg/kg (500mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY)
Indian Journal of Experimental Biology. Vol. 25, Pg. 463, 1987.
rat LD50 oral 1050mg/kg (1050mg/kg)   "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A314, Pg. 1984,

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View