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    Shanghai Longschem Co.,Ltd

    Shanghai Longschem Co., Ltd., with 2 factories and 1 R & D Center, is specialized in the development, manufacture and sales of APIs, pharmaceutical intermediates, intermediates for pesticides and dyes, electronic chemicals and fine chemicals. To ensure our advantages in products and technologies, we have cooperated with Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences£¬Zhejiang University and East China University of Science and Technology, which has laid a solid basis for the sustainable development of the company. Longschem accepts contract manufacturing and is capable of the development of new products. Longschem's business philosophy: Quality First, Service First; Pioneering, Pragmatic and Innovative; Sustainable Development. Longschem warmly welcomes the cooperation of companies from around the world. And we'll be your best partner to develop the Chinese market.

    Latest Products

  • 2-Bromo-4-nitroimidazole

    • CAS No.65902-59-2 Molecular FormulaC3H2BrN3O2 Molecular Weight191.97 Appearance Pale yellow crystal Melting Point180 -182¡ãC Purity(HPLC)¡Ý98.0% TLCOne spot
    related products: Organic Chemical Materials (439) / Organic Intermediate (92)
    intermediate ,


  • Venlafaxine Hydrochloride

    • synonymsVenlafaxineHCL;(+/-)-1-(alpha-((dimethylamino)methyl)-p-methoxybenzyl)cyclohexanol hydrochloride; Effexor; (RS)-1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl]cyclohexanol hydrochloride; venlafaxine hydrochloride; Venlafaxine Hydrochloride CA
    related products: Pharmaceutical Raw Materials (735)
    pharmaceutical raw m , venlafaxine , venlafaxinehcl ,


  • 5-(Bromomethyl)- a,a,a¡¯,a¡¯-Tetramethyl-1

    • Synonyms3,5-bis(2-cyanoprop-2-yl)benzyl bromide; 2,2'-(5-bromomethyl-1,3-phenylene di(2-methylpropiononitrile); 5-(bromomethyl)-a,a,a',a'-tetramethyl-1,3-benzenediacetonitrile CAS No.120511-84-4 Purity¡Ý90% UseIntermediate of Anastrozole
    related products: Pharmaceutical Chemicals (422)
    intermediate , anastrozole , pharmaceutical ,


  • 1,2,3

    • Synonyms1,2,3,4-Tetrahydro-9-methylcarbazol-4-one; 1,2,3,9-Tetrahydro-4H-9-methyl-carbazole-4-one; CAS No.27387-31-1 Molecular formulaC13H13NO Content¡Ý98% UseInetrmediate of Ondansetron HCl
    related products: Pharmaceutical Chemicals (422)
    intermediate , pharmaceutical , ondansetron hcl ,


  • 5,6-Difluorooxindole

    • CAS No.71294-07-0 Molecular formulaC8H5F2NO Molecular weight 169.13 Assay 98% Moisture0.5%(Max) Use Intermediate in organic syntheses
    related products: Organic Chemical Materials (439) / Organic Intermediate (92)
    intermediate , pharmaceutical , organic syntheses ,


  • 5-a,a,a',a'-Pentamethyl-1

    • Synonyms3,5-bis(2-cyanoprop-2-yl)toluene; 2,2'-(5-methyl-1,3-phenylene)di(2-methylpropionitrile); a,a,a',a',5-pentamethyl-1,3-benzenediacetonitrile Chemical name5-a,a,a',a'-Pentamethyl-1,3-Benzenediacetonitrile CAS No.120511-72-0 Purity¡Ý98.5% Us
    related products: Pharmaceutical Chemicals (422)
    intermediate , pharmaceutical , anastrozole ,


  • 4-hydroxyindole

    • CAS No.2380-94-1 Molecular formulaC8H7NO Molecular weight 133.15 Appearance white to yellowish crystal Purity ¡Ý98% Melting point98~102oC Loss on drying0.5% max Use Pharmaceutical intermediate Packing In 25kg net drum with PE liners
    related products: Organic Chemical Materials (439)
    intermediate , pharmaceutical ,


  • Tolmetin

    • Synonyms 2-[1-methyl-5-(4-methylbenzoyl)-pyrrol-2-yl]acetic acid CAS No.26171-23-3 Molecular formulaC15H15NO3 Molecular weight 257.29 Appearance Off-white crystalline power Purity ¡Ý98.0% Moisture ¡Ü1.0% Ash ¡Ü0.5% Melting point156¡ãC Water
    related products: Organic Chemical Materials (439)
    intermediate , pharmaceutical , tolemetin ,


  • 5-Amino-1-(2-hydroxyethyl)pyrazole

    • Synonyms5-Amino-1-(b-hydroxyethyl)pyrazole CAS No.73616-27-0 Molecular formulaC5H9N3O Molecular weight127.14 AppearanceWhite crystalline power Purity¡Ý99.0% Moisture¡Ü0.3% UsePharmaceutical intermediate;intermediate for cefoselis
    related products: Organic Chemical Materials (439)
    intermediate , pharmaceutical , cefoselis ,


  • 2,3-Diamino-6-methoxypyridine

    • CAS No.28020-38-4 Molecular formulaC6H9N3O.2HCl Molecular weight 139.16 Appearance Gray crystalline powder Purity ¡Ý98% Moisture ¡Ü1.0% Ash ¡Ü0.5% Melting Point167 - 171¡ãC Use Pharmaceutical intermediate;intermediate for tenatoprazole
    related products: Organic Chemical Materials (439)
    intermediate , pharmaceutical , tenatoprazole ,


    Contact Information


  • Company Name:   Shanghai Longschem Co.,Ltd
  • Country/Region:   SHANG HAI - CHINA
  • Company Address:   Rm.1002,building No.6,338Jincheng Rd shanghai
  • Zip/Postal code:   200072
  • Company Phone:   86-21-66111580
  • Company Fax:   86-21-66111581
  • Contact Person:   Charles hu (manager)
  • Contact Phone:   86-21-66111580
  • Industry:   Chemicals
  • Business Nature:   Manufacturer
  • Founded Year:   2005
  • Number of Employees:   5 ~ 20
  • Website:   http://global-tradekey.com/company/G08522

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