manu/selling hydroquinone, tech/photo grade& catechol |
Dear Sirs,
We hereby introduce ourself as a supplying:
hydroquinone & catechol,4-Methoxyphenol 99%
and pharm raw materials of
Product Name Specification
Etoposide USP OR BP
Ifosfamide USP
Mesna In-house standard
Ketamine HCL USP
Irinotecan HCL In-house standard
Letrozole USP
Divalproex Sodium In-house standard
Oxalipiatin EP
Docetaxel In-house Standard
Sevoflurane In-house Standard
Atracurium Besylate In-house Standard
Gabapentin USP
Butorphanol Tartrate USP
loversol In-house Standard
Cisatracurium Besylate In-house Standard
in China.
.please contact us if you are interested in any of them.
Your high attention and prompt reply will be appreciated.
Yours faithfully,
Direct contactor:J.Chen
Com:
CHEN FENG-YANG
Add: Building 21-C-502,No.14-2,Hainan Rd, Xinpu Zone, Lianyungang, China
Post code :222000, Tel: 86 518 85595445, Fax: 86 518 85595445
Email:jeffersonchen7@yahoo.com.cn;jeffersonchen7@hotmail.com
http://www.maxpagesplus.com/hydroquinone
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hydroquinone tech/photo grade |
Hydroquinone
1. Chemical Name:Para-dihydroxybenzene;
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2.Property Description:1)Needle-like crystal;2)Molecular Formula:C6H6O2;3)Molecular Weight:110.11;4)Specific Gravity:1.332;5)Melting Point:172(degree c);6)Boiling Point:286(degree c);7)Flash Point:165(degree c);8)Hydroquinone is solube in water, alcohol,ether and slightly solble in benzene.
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3.Uses:Hydroquinone is an important chemical industry material, which is mainly used in developer anthraquinone, azobenzene dye, synthetic ammonia flux,rubber antiox-idant,paint and stabilizer as well antioxidant of essence.
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4.Specification:industry-grade/standard:Q/320700FE02-2005;Item:1)Appearance:white or greyish white powdery crystal;2)Content(%):99min;3)Melting point(degee c):170 min;4)Ignition Residue:(%)0.1 max;
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Specifcation of photographic-grade/Standard(Q/320700FE02-2005);Item:1) Appearance:white or near white powdery crystal;2)Content(%):99.0-101.0;3)Melting point(degree c):171-175;4)Solubility:up to standard;5)Ignition Residue(%):0.05 max;6)Heavy metal(Pb,%):0.002 max;7) Iron(Fe,%):0.002max;
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5.Package:25kgs net water proof poly compound bag within liner,,gross weight/25.2kgs,per 18/mt in a 20'fcl without pallets.
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6.Storage and transport:It should be handled with care when it is used and transported. It should be handled as general poisonous chemical goods. |
1.Chemical Name:Ortho-dihydroxybenzene;
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2.Property Description:1)Colourless Monoclinic Crystal;2)Molecular Formula:C6H6O2;3)Molecular Weight:110.11;4)Specific Gravity:1.37; 5)Molcapacity:0.14kj.mol(-1).K(-1);6)Melting Point:104-1-05(degree c);7)Boiling Point:246(degree c);8)Soluble in water,alcohol, ehter, benzene,chloroform,pyridine,liquid alkali. Catechol is poisonous, sublimates easily, burn and oxidate easily and becomes brown when exposed in the air.
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3.Uses:Catechol is an important chemical industry intermediate product with wide use. It can be used as rubber harden-idant, electroplate additive, skin preservative as well as bactericide,dye hair, photographic developer, color photographic anti-oxidant, furcoloring agent, paint and varnish anti-shrivel. Furthermore, catechol is an important material of synthetic resin, tannic acid, agricultural chemical furantoin, medical ,the rhizome of Chinese goldthread, perfume vanillin, pepper aldehyde and so on.
=======================================================================================================4.Specifications/Standard(Q/320700FE01-2005);Item:1)Appearance:Light grey to light brown flake grain;2)Content(%):98-98.5.0min;3)Melting point(degree c):104-106;4) Ashes(%):0.04 max
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5.Package:net weight/25kgs ,gross weight/25.2kgs, per 25kg net in a water proof poly compound bag within liner, per 18/mt in a 20'fcl without pallets.
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6.Storage and transport: Catechol should be tightly and completely cut off from air when it is packed and transported as general combustible chemical goods.
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