2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6)

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The ability to produce, synthesize and manufacture large quantities of 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) with quality control system under CGMP manufacturing



2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) video

Dihydrofolate reductase (DHFR) has been a well-recognized target for the treatment of many diseases. Based on 8,10-dideazaminopterins, which are classical antifolates that potently inhibit DHFR, it is designed a series of novel 2,4-diamino-6-substituted pyrido[3,2-d]pyrimidines. By removing the glutamate moiety and introducing lipophilic groups, it was hoped to improve passive diffuse through the cell membranes. The target compounds were efficiently synthesized using one-pot procedure and evaluated in vitro for DHFR inhibition and antitumor activity.

Compounds 5e, 5h, 5i and 5k were the most potent inhibitors of recombinant human DHFR (rhDHFR) with IC50values in the range 0.2–1.0 μM. Analysis using flow cytometric indicated that the effect of compound 5k on cell cycle progression was linked to induction of S phase arrest. Compounds 5g, 5h, 5i and 5k showed broad spectrum antitumor activity against four different tumor cell lines, with IC50values in the range 0.07–23 μM. Molecular docking investigations showed that the trimethoyphenyl ring of compound 5k occupied a position near the cofactor-binding site in the rhDHFR-inhibitor complex, with close intermolecular contacts with Asp21, Phe31, Ser59, Ile60 and Pro61.

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2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Specifications

CAS 908240-50-6
CAS Min % 95%
CAS Max % 100%
MDL Number MFCD10699461
Chemical Name or Material  2,4-Dichloropyrido[3,4-d]pyrimidine
Infrared Spectrum Authentic
Physical Form White to brown solid
Packaging Glass bottle
Molecular Formula C7H3Cl2N3
Molecular Weight (g/mol) 200.02
Color White
Boiling Point 340.821ºC at 760 mmHg
Assay 98%


APICMO hazard icons

2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Safety and Handling

  • Do not breath dust or vapor.
  • Have safety shower and eye wash available.
  • Do not get in eyes, on skin or on clothing.
  • Keep container tightly closed.
  • Store in a cool, dry, well-ventilated place.
  • Ensure adequate ventilation during use.
  • Use only in a chemical fume hood.

WARNING: The information provided on this web site was developed in compliance with European Union (EU) regulations and is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guide for safe handling and use. It is not to be considered as either a warranty or quality specification.

2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Articles

Synthesis and biological evaluation of irreversible EGFR tyrosine kinase inhibitors containing pyrido[3,4-d]pyrimidine scaffold

In the present study, a new class of compounds containing pyrido[3,4-d]pyrimidine scaffold with an acrylamide moiety was designed as irreversible

Medicinal Chemistry 2018

Discovery and in vivo effects of novel human natriuretic peptide receptor A (NPR-A) agonists with improved activity for rat NPR-A

Natriuretic peptide receptor A (NPR-A) agonists were evaluated in vivo by optimizing the structure of quinazoline derivatives to improve agonistic activity

Bioorganic and Medicinal Chemistry 2017

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2 reviews for 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6)


    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Detailed Description

    At APICMO, we have the expertise to manufacture various chemical compounds synthetically.  Among them is 2,4-Dichloropyrido[3,4-d]pyrimidine which is manufactured in large quantities. APICMO products satisfy the federal requirements and the CGMP procedures on manufacturing.

    Chemical Structure Of 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6)

    [caption id="attachment_736" align="alignnone" width="500"]2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6)[/caption]This chemical is in the category of heterocycles.

    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Specifications

    Chemical name 2,4-dichloropyrido[3,4-d]Pyrimidine
    IUPAC name 2,4-dichloropyrido[3,4-d]Pyrimidine
    CAS Number 908240-50-6
    Assay 98%
    Boiling point 340.821°c t 760mmHg
    Color White
    Smiles CIC1=NC2=CN=CC=C2C=(CI)=N1
    Molecular weight 200.2 g/mol
    Molecular formula C7H3CI2N3
    Packaging Glass bottle
    Physical form Solid
    Infrared spectrum Authentic
    MDL Number




    Max 100%

    1. Min 95%

    synonyms ZINC15443477
    2. W-205258
    3. SCHEMBL1654503
    4. Pyrido[2,3-d]pyrimidine,2,4-dichloro-
    6. CTK4B5322
    7. ACMC-20aifk
    8. 2,4-dichloro-pyrido[2,3-d]pyrimidine
    9. 2,4-Dichloropyrido[2,3-d]pyrimidine
    2,4 dichloro-pyrido[2,3-d]pyrimidine

    2,4-Dichloropyrido[3,4-d]pyrimidine physical and chemical properties

    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Computed properties

    Name of the property Value
    Count of Covalently-Bonded  Unit 1
    Count of Isotome Atom 0
    Stereocenter Count of Undefined Bond 0
    Stereocenter Count of Defined Bond 0
    Strerocenter Count of Undefined Atom 0
    SttereocenterCount of defined Atom 0
    Count of Heavy Atom 12
    Formal Charge 0
    Is The Compound Canonicalized Yes
    Xlogp3-AA 2.4
    Actual Mass 198.97 g/mol
    MonoisotopicMass 198.97 g/mol
    Surface Area of Topological Polar 38.7 A^2
    Count Of Rotatable Bond
    Acceptor Count of Hydrogen Bond 3
    Donor Count of Hydrogen Bond 0
    Molecular Weight 200.022 g/mol


    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Uses

    • Used to synthesize other chemicals
    • For research and development purposes

    Risks of associated with 2,4-Dichloropyrido[3,4-d]pyrimidine mishandling

    2,4-Dichloropyrido[3,4-d]pyrimidine may cause harmful effects to your health is poorly handled. The chemical should, therefore, be handled with a lot of care.  The researcher needs to have a good experienced and aided by a certified supervisor. The following are some of the risks you may encounter by mishandling this chemical:APICMO hazard icons

    • The product is hazardous if  swallowed
    • Irritates the skin
    • Irritates the respiratory tract
    • May seriously damage the eyes
    • Irritates the eyes.

    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Safety precautions


    During the chemical handling

    In case you are handling this chemical, ensure that you follow the following precautions:

    • Have access to the particular directions of use before handling
    • Read and comprehend the instructions
    • You should not breath the dust/gas/mist/spray/vapour.
    • Avoid eating, drinking or smoking during the handling
    • Use in a well-ventilated area
    • Do not release the product into the draining channels
    • Avoid contact with eyes and skin
    • Install proper exhaust ventilation if dust is formed in the place

    After use of the chemical

    Once you are done with your synthesis or research, it is important to carry out the following measures:

    • Cover the remaining chemical tightly in a container
    • Ensure that you store it in a space that is cool and dry
    • Thoroughly clean your hands when you are done using the chemical compound
    • Remove the contaminated clothes and clean them before using them again
    • Properly dispose of the container and the contents according to the local procedures.

    If the product is not in use

    In case the product is not being used, ensure the following:

    • Ensure the container is tightly sealed.

    Equipment for personal protection

    Avoiding the dangers of this product at all times is important. You should, therefore, ensure that you have the appropriate equipment to protect your body.

    1. Respiratory protection

    Make sure that you are safe from breathing in the dangerous vapors, dust or fumes. These fumes may irritate your respiratory tract. Respirators with which filters are fitted are recommended to wear. The respirators should also satisfy the suitable standards approved by the government.

    2. Skin protection

    Ensure that you do not expose any naked part of your body. Gloves are recommended to use. Always inspect the gloves before use. Properly remove the gloves and avoid touching the outer side. The gloves should then be disposed of per the law.  Thoroughly clean and dry your hands.

    3. Protection of face and eyes

    Use protective glasses. The glasses should have side-shields to protect your face. They must as well satisfy the regulated standards by the government.

    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) First aid precautions

    Emergencies may occur at any time while dealing with 2,4-Dichloropyrido[3,4-d]pyrimidine. The following are some of the possible emergencies and their corresponding first aid steps. The first aid should be done immediately as an emergency occurs to avoid further risks. You should as well consult a physician after the first aid.

    1 .In case of inhaling the chemical

    Quickly take the victim to an open place for fresh air
    Artificial respiration may be administered

    Get help from a physician

    2. In case of contact with the eye

    Use plenty of water to rinse eyes thoroughly

    Get help from a physician

    3. In case of skin contact

    Use soap and plenty of water to wash thoroughly

    Contact a physician

    4. In case it is swallowed

    Clean the mouth with water.

    In case of unconsciousness, do not give by mouth anything to the victim.

    5. 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Storage

    Ensure the container is always tightly corked

    2,4-Dichloropyrido[3,4-d]pyrimidine should be stored in a cool environment

    Always use the original container to store

    The chemical container should be well labeled

    6. 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Shipping hazards

    There are no records of any hazards associated with transportation of 2,4-Dichloropyrido[3,4-d]pyrimidine

    7. Fire fighting measures

    If fire breaks while dealing with 2,4-Dichloropyrido[3,4-d]pyrimidine or products synthesized from it,  the following are the firefighting media that can be used.

    Water spray

    Alcohol resistant foam

    Carbon dioxide

    Dry chemical.

    Breathing equipment should be put on while fighting the fire.

    8. Disposal

    The non-recyclable surplus should be submitted to an approved disposal company

    The material should be dissolved in a combustible liquid and burn it. Chemical incinerator should be used to heat the solution.

    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Regulatory statement

    2,4-Dichloropyrido[3,4-d]pyrimidine meets the requirements needed by the chemical regulations. This document, therefore, contains reliable guiding information.

    2,4-Dichloropyrido[3,4-d]Pyrimidine Technical Service

    We have a team of scientists that are experienced in all the research areas including material science, chromatography, life science, analytical, chemical synthesis among others.

    2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6) Bulk Ordering and Pricing

    Do you need any large quantities for your research applications, manufacturing or development? Then, contact our friendly customer service team to place an order.


    1. National Centre For Biotechnology Information, US. National Library Of Medicine, PubChem 2,4-Dichloropyrido[3,4-d]pyrimidine (908240-50-6))Sections 1-11
    2. Journal of the American Chemical Society, Proceedings of the Society are included in v. 1-59, Page 5112
    3. Josef Houben, Ernst Schaumann, Karl H. Büchel,  Hetarenes IV: six-membered and larger heterorings with maximum unsaturation.

  2. Apicmo

    The best 2,4-Dichloropyrido[3,4-d]pyrimidine and service i have ever had,Nice experience

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