LONGCHEM specializes in R & D and custom manufacturing
of various intermediates and fine chemicals.
Based on our rich experience and solid background, we offer
a wide range of chemical manufacturing technologies to our
customers. The technologies can be either transferred by our
customers or be developed by in-house R & D centers, which
are overall more than 1000SQM.
Custom manufacturing are always proceeded under confidential
disclosure agreements. Custom manufactured products are solely
sold to the specific customer. The right of intellectual property
will be discussed in the CDA. All R & D track records
are traceable as per the established SOP from lab scale to
trial production via pilot production.
Impurity profile will be synthesized during the developing
process. Residual solvents will be tested before scale-up.
We succeed in most of challenges from our partners as we
integrate our resources among Organic Chemistry, Chemical
Engineering, Pharmacology, and International business with
respectful working experiences.
Such background of working team possess sufficient ability
to combine in-house technology with outdoor strengths to fulfill
sophisticated challenges.
Photos of our modern R & D centers:
  
Plant Equipment:
Reactors: various, glass-lined and SS ranged
from 100L to 5000L: 50CBM
Driers: Tray driers; Rotary driers; with
vacuum or hot air.
Distillators: 3
Pressure: from 5mmHg to 80atm
Temperature: -80deg.c. ~ +400deg.c.
QC instruments: HPLCs (Brand Agilent, Waters),
GCs (Brand Agilent, Shimadzu),
KF, IR, Digital Polarimeter, Refrectometer, Auto Titrator¡
QA Team: Vendor Assessment; Quality Assurance;
Customer Audit Support
Allied Services: Project
Deveopment; Process development; Custom Manufacturing;
Unit Reactions familiar with:
Acetylation
Alkylation
Allylic bromination
Amination
Ammonolysis
Asymmetric synthesis
Benzoylation
Bromination
Carbonylation
Carboxylation
Chiral chemistry
Condensation
Cyanidation |
Cyclization Diazotization Reaction
Esterification
Fixed Bed Reaction
Hydrogenation
Hydrolysis
Hydroxylation
Iodination
Isocyanate Reactions
Methylation
Nitration
Open-ring
Oxidation (N-Oxidation)
Reduction-catalytic
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Named Reactions familiar with:
Bachmann Rearrangement Reaction
Claisen condensation
Fischer Indole Synthesis
Friedel-Crafts reaction
Leuchart Reaction:
Muller Reaction:
Sandmeyer reaction
Vilsmeier reactions
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TOGETHER WITH FOLLOWING DATA AS MUCH AS POSSIBLE:
1) CHEMICAL NAME
2) CHEMICAL STRUCTURE
3) CAS NUMBER
4) ANNUAL DEMAND and TRIAL QUANTITY
5) REQUIRED DELIVERY TIME
WE CAN CUSTOM MANUFATURE FINE
CHEMICALS AND KEY INTERMEDIATES FOR YOU FROM
KILOS TO TONS IN A GIVEN PERIOD.
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Custom Manufacturing