JIANGSU CLENT CHEMICAL CO...

3, 4-Dihydropyran is mainly as a pharmaceutical intermediate. Alcohol group protection reagent; widely used in hydroxyl group protection reagent. Dihydropyran is chemically active, and tetrahydropyran, pentanediol, glutaric acid, valerolactone, pentadiene and resin products can be produced through polymerization, hydrogenation, oxidation and other reactions.

Product Name: 3, 4-dihydropyran

Other Name: 2, 3-dihydropyran

CAS NO.: 110-87-2

Assay: 98.0%min

Appearance: colorless transparent liquid

Package: 180kg/iron-drum and long-term inventory

Usage:Pharmaceutical and organic synthesis intermediates, Hydroxyl protection agents.

3-Mercaptopropionic acidis an intermediate of the pharmaceuticalintermediatesand also used as a stabilizer of polyvinyl chloride.

Product Name3-Mercaptopropionic acid

CAS NO.107-96-0

Assay: 99.0%

EINECS NO.: 203-537-0

Formula: C3H6O2S

Mol. WT.: 106.139

Appearance: Colorless to light yellow transparent liquid

Usage: Chlormezanone for medicine. Chlormezanone can also be used as an antioxidant, catalyst and biochemical reagent for medicine intermediates and electronic chemicals

Application

This product is an intermediate for pharmaceutical fennel and is also used as a stabilizer for polyvinyl chloride. It can be used

in transparent articles like thioglycolic acid, and has excellent thermal stability and is superior to other stabilizers. Also

used as antioxidants, catalysts and biochemical reagents

cas no.: 50-69-1

assay: 99.0% min

molecular formula:c5h10o5

molecular weight:150.13

hs code: 29400090

d-ribose is an important five-carbon monosaccharide, c5h10o5. it is an important component of rna and atp and plays an important role in the formation of life. d-ribose is also an important drug intermediate used in the production of a variety of nucleic acid drugs.

physical and chemical properties

hygroscopicity: easy to absorb moisture in the air

application field

used as pharmaceutical raw materials, health products, intermediates, food additives, etc.

storage and transportation

keep it dry and sealed at 2-8.

appearance

white crystalline powder with a cool, sweet taste

d-ribose is an important five-carbon monosaccharide with chemical formula c5h10o5. it is an important component of rna and atp, and plays an important role in the formation of life. d-ribose is also an important drug intermediate used in the production of various nucleic acid drugs.

specification

safety information

2-Amino-5-nitrothiazole, as an important intermediate for the preparation of azo heterocyclic dyes.

Product Name: 2-Amino-5-nitrothiazole

Other name: aminzolsoluble ; 5-nitro-2-Thiazolamine

CAS NO.:121-66-4

EINECS NO.:204-490-9

Molecular formula:C3H4N2O3S

Melting point:196-204

Assay: 99.0%

Appearance: Greenish-yellow to orange or brown powder

Package: 25kg/drum or as customized

Usage: As an important intermediate of pharmaceutical and dye.

Hexamethylcyclotrisiloxane, D3

CAS Number: 541-05-9

Assay: 98.0% min

Molecular Formula:C6H18O3Si3

Molecular Weight:222.46

Hs Code: 29319090

China hexamethylcyclotrisiloxane supplier preferred Clent Chemical. Factory direct sales, higher content, more stable quality. High content, high quality, large quantity and better price!

Hexamethylcyclotrisiloxane operation process

1.Deployment ratio: hexamethylene cyclotrisiloxane: compound = 1:1 (mass ratio) mixed evenly, get shrinkage agent.

2.vulcanization: according to the demand will be mixed with good shrinkage agent into silicone rubber mixing uniform, after a period of vulcanization, and then by 180 degrees Celsius an hour of 2 vulcanization.

Storage methods of hexamethylcyclotrisiloxane

Hexamethylcyclotrisiloxane stored in a cool, dry, well ventilated warehouse. Keep away from fire and heat. Keep out of direct sunlight. The package is sealed. It should be stored separately from acids and edible chemicals and should not be mixed. The storage area should be equipped with suitable materials to contain leaks.

Hexamethylcyclotrisiloxane purposes

In addition to the synthesis of general organosilicon polymer, can also be used to prepare specific organosilicon compounds, as a variety of surface treatment agent, coupling agent, crosslinking agent, etc

Hexamethylcyclotrisiloxane technical indicators

1.Appearance: white crystalline solid;

2.quality score /% : 98;

3.density: (25, g/cm3) : 1.02;

4.melting point: 64.5

5.boiling point: 134

6.Solubility: soluble

Hexamethylcyclotrisiloxane matters needing attention

Irritates eyes, respiratory system and skin.

Hexamethylcyclotrisiloxane; D3, white crystal, melting point 75, shrinkage rate 0.6-0.8%, used for silicone rubber shrinkage treatment.

Specification

SafetyInformation

P-Chlorophenol; 4-Chlorophenol

CAS Number: 106-48-9

Assay: 99.0% min

Molecular Formula:C6H5ClO

Molecular Weight:128.56

Hs Code: 29081000

P-Chlorophenol, also known as 4-chlorophenol, is an organic compound with a chemical formula of C6H5ClO. It is a white crystalline powder, slightly soluble in water, easily soluble in ethanol, ether, chloroform, and benzene, and is mainly used as medicine, pesticide, Intermediates of organic synthesis.

p-chlorophenol Physicochemical property

p-chlorophenol is white crystals in pure products (yellow or pink crystals in industrial products). It has an unpleasant pungent smell. Almost insoluble in water, soluble in benzene, ethanol, ether, glycerin, chloroform, fixed oil and volatile oil.

p-chlorophenol Product use

Used for synthetic dye neutral brilliant green BL, medicine antamine and pesticide, can also be used as a solvent refining mineral oil

p-chlorophenol Dangerous goods mark

1.Xn - Hazardous goods

2.N - Environmental hazards

p-chlorophenol Dangerous goods transport number

UN 2020 6.1/PG 3

p-chlorophenol property

Colorless acicular crystals with an unpleasant odor. Melting point 42 43. The boiling point is 217. Refractive index 1.5571 (40). The relative density is 1.2278. Slightly soluble in water, easily soluble in benzene, ethanol, ether, glycerol and caustic soda.

p-chlorophenol security

1.Strong irritation to eyes, mucous membrane, respiratory tract and skin. Poisoning is characterized by burning sensation, cough, wheezing, laryngitis, headache and nausea. Contact with its dust, should wear a headcover-type electric air supply filter dust respirator.

2.Screw mouth glass bottle, iron lid pressure mouth glass bottle, plastic bottle or metal bucket (jar) outside wooden box. Store in a cool and ventilated compartment. Keep away from fire and heat. Keep out of direct sunlight. When handling, light loading and unloading should be done to prevent damage to packaging and containers. Personal protection should be paid attention to in packing and handling operations.

Specification

Safety Information

Product Name: 2, 3-Dihydrofuran

CAS NO.:1191-99-7

Assay: 99.0%min

Appearance: colourless transparent liquid

Package: 180kg/iron-drum and long-term inventory

Usage:Pharmaceutical intermediates and Organic synthesis intermediates

Octamethylcyclotetrasiloxane(D4) is colorless, insoluble in water, soluble in organic solvents . Polymerization of organic silicone polymer under acid-base catalysis is the basic raw material of silicone oil and silicone rubber. It can also be directly used asrubber filler treatment agent and cosmetic raw material.

Cas: 556-67-2

Molecular Formula:C₈H₂₄Si₄O₄

Molecular Weight:296.63

EINECS:209-136-7

Flashing Point: 56C

Density (P20)g/cm³:0.956

Standard

GB/T 20435-2006

Application

Its a basic raw material of silicone oil (modified silicone oil), silicone emulsion, silicone rubber , silicone

resin and other silicone products, and can also be directly used as rubber filler treatment agents

or raw material for cosmetics.

Precautions

The mixture of vapor and air is explosive. Its easy to form explosive mixtures when fine dispersion

composition in the air .Static electricity will be accumulated and may ignite vapors. Prevent a possible fire

hazard by bonding and grounding or using inert

gas purge. Keep container closed and away from heat, sparks, and flame.

Package storage and transportation

1 Packing:200L iron drum(N.W.190 /drum IBC N.W. 950 kg

2 Transportation:Keep container closed and away from heat, sparks, flame and the direct sunlight, acid and alkali

3 Storage:Stored at 20 40 warehouse, pls do the antifreeze preparations when the temperature is below 17 .

4 Shelf time:6 months.Beyond the time , it can still be used after re-test, if the test result meets the requirement of this standard.

Product Name: Tetrahydro-4H-pyran-4-one

CAS NO.: 29943-42-8

Other Name: 4-Oxotetrahydropyran; Tetrahydropyran-4-one

Assay: 99.0% min

Appearance: Colorless transparent liquid

Packing: 200kg/drum and long-term inventory

Usage: Pharmaceutical intermediates and organic synthesis intermediates

Dicyclopentadiene; DCPD

CAS Number: 77-73-6

Assay: 99.0%min

Molecular Formula: C10H12

Molecular Weight: 132.20

Hs Code: 2902199

Dicyclopentadiene (DCPD) is an organic compound with chemical formula C10H12. It is a dimer generated by the Diels-Alder reaction of cyclopentadiene. It has two isomers, inner type and outer type, and is colorless crystal, insoluble in water, soluble in alcohol, ether and carbon tetrachloride.

Dicyclopentadiene physical and chemical properties

Density: 0.982g/cm3

Melting point: 33.6

Boiling point: 170

Flash point: 26

Refractive index: 1.512

Appearance: Colorless crystal

Solubility: soluble in alcohol, ether and carbon tetrachloride, insoluble in water

Dicyclopentadiene molecular structure data

Molar refractive index: 41.42

Molar volume (cm3/mol) : 126.0

Isotonic specific volume (90.2K) : 320.6

Surface tension (dyne/cm) : 41.8

Dielectric constant (F/m) : 2.29

Polarization (10-24cm3) : 16.42

Dicyclopentadiene use

1, used as the third component of ethylene propylene copolymer (EPDM);

2, Used as raw material for synthesis of ethylennorbornene (ENB);

3, reaction with maleic anhydride to obtain norbornyl anhydride, used as epoxy resin curing agent, polyester resin, alkyd resin, pesticide raw materials;

4, Hexachlorocyclopentadiene, the hydrogenated phthalic anhydride of methylene hexachloride obtained by reaction with maleic anhydride, is used as a flame retardant of synthetic resin;

5, used for tung oil, linseed oil, soybean oil, fish oil, such as modification, can accelerate drying, improve water resistance, alkali resistance;

6, dipolymer cyclopentadiene resin can be used as rubber adhesive, pressure sensitive adhesive, hot soluble adhesive, ink, paint, etc.

7, dipoly cyclopentadiene oxide can be used as injection molding and laminating resin;

8, Cyclopentene obtained by partial hydrogenation of cyclopentadiene was repolymerized to obtain 1, 5-trans polycyclopentene;

9, Cyclopentadiene is the raw material for the production of Aldrin and Didrin insecticides;

10, Cyclopentadiene is also used in the synthesis of drugs, such as alpha-cyclopentadienylmandelate, an intermediate in gastrochangle.

Dicyclopentadiene emergency treatment

Leakage emergency treatment

Cut off the fire. Emergency personnel should wear gas masks and general fire protective clothing. Sweep carefully, place in a bag and transfer to a safe place. Such as a large amount of leakage, collection and recycling or harmless disposal after waste.

Protective measures

Respiratory protection: Wear a mask when possible contact with toxins.

Eye protection: Generally no special protection is required.

Body protection: Wear antistatic work clothes.

Hand protection: Wear protective gloves if necessary.

Others: Smoking is strictly prohibited on site. Shower and change after work. Maintain good hygiene.

Product Name: 2, 5-Dihydrofuran

CAS NO.:1708-29-8

Assay:98.0%min

Description:colourless transparent liquid

Density:0.927 g/ml

Flash Point: -24

Package: 180kg/iron-drum and long-term inventory

Usage:Pharmaceutical intermediates