Cas no 67434-65-5 (4-Chloro-5,6-dimethylpyrimidine)

4-Chloro-5,6-dimethylpyrimidine is a halogenated pyrimidine derivative widely used as a versatile intermediate in organic synthesis and pharmaceutical research. Its key structural features—the chloro substituent at the 4-position and methyl groups at the 5- and 6-positions—enhance reactivity in nucleophilic substitution and cross-coupling reactions. This compound is particularly valuable in the preparation of agrochemicals, bioactive molecules, and heterocyclic compounds due to its stability and selective functionalization potential. Its crystalline solid form and well-defined purity make it suitable for precise synthetic applications. Researchers favor this building block for its efficiency in constructing complex molecular frameworks, particularly in medicinal chemistry and materials science.
4-Chloro-5,6-dimethylpyrimidine structure
67434-65-5 structure
Product Name:4-Chloro-5,6-dimethylpyrimidine
CAS No:67434-65-5
MF:C6H7ClN2
MW:142.586179971695
MDL:MFCD09909775
CID:1036228
PubChem ID:12600389
Update Time:2025-11-01

4-Chloro-5,6-dimethylpyrimidine Chemical and Physical Properties

Names and Identifiers

    • 4-Chloro-5,6-dimethylpyrimidine
    • C6H7ClN2
    • 4-Chlor-5,6-dimethyl-pyrimidin
    • 4-chloro-5,6-dimethyl-pyrimidine
    • Pyrimidine, 4-chloro-5,6-dimethyl- (7CI,9CI)
    • PYRIMIDINE, 4-CHLORO-5,6-DIMETHYL-
    • MJRSZADMKJVGQV-UHFFFAOYSA-N
    • 6139AJ
    • AB54898
    • SY024254
    • AK125273
    • SCHEMBL859422
    • A867270
    • 67434-65-5
    • DTXSID50503975
    • Z800200816
    • GS-5685
    • AKOS010502631
    • FT-0764321
    • MFCD09909775
    • EN300-107332
    • H10268
    • 4-Chloro-5 pound not6-dimethylpyrimidine
    • F1967-2545
    • CS-0045686
    • DA-39618
    • MDL： MFCD09909775
    • Inchi： 1S/C6H7ClN2/c1-4-5(2)8-3-9-6(4)7/h3H,1-2H3
    • InChI Key： MJRSZADMKJVGQV-UHFFFAOYSA-N
    • SMILES： ClC1=C(C)C(C)=NC=N1

Computed Properties

  • Exact Mass: 142.03000
  • Monoisotopic Mass: 142.0297759g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 9
  • Rotatable Bond Count: 0
  • Complexity: 97.1
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 25.8
  • XLogP3: 1.9

Experimental Properties

  • Color/Form: No data avaiable
  • Density: 1.184±0.06 g/cm3 (20 oC 760 Torr),
  • Melting Point: 215-216 oC
  • Boiling Point: 80-82 oC (10 Torr)
  • Flash Point: 112.6±11.5 oC,
  • Solubility: Slightly soluble (11 g/l) (25 o C),
  • PSA: 25.78000
  • LogP: 1.74680
  • Vapor Pressure: 0.0±0.7 mmHg at 25°C

4-Chloro-5,6-dimethylpyrimidine Security Information

4-Chloro-5,6-dimethylpyrimidine Customs Data

  • HS CODE：2933599090
  • Customs Data：

    China Customs Code:

    2933599090

    Overview:

    2933599090. Other compounds with pyrimidine ring in structure(Including other compounds with piperazine ring on the structure. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to, Please indicate the appearance of Urotropine, 6- caprolactam please indicate the appearance, Signing date

    Summary:

    2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

4-Chloro-5,6-dimethylpyrimidine Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
Alichem
A089000882-1g
4-Chloro-5,6-dimethylpyrimidine
 67434-65-5 95%
1g
 $176.40 2023-09-01
Alichem
A089000882-5g
4-Chloro-5,6-dimethylpyrimidine
 67434-65-5 95%
5g
 $529.20 2023-09-01
SHANG HAI MAI KE LIN SHENG HUA Technology Co., Ltd.
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4-Chloro-5,6-dimethylpyrimidine
 67434-65-5 95%
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 1,067.40 2021-05-17
Matrix Scientific
223420-1g
4-Chloro-5,6-dimethylpyrimidine, 95% min
 67434-65-5 95%
1g
 $328.00 2023-09-06
Matrix Scientific
223420-5g
4-Chloro-5,6-dimethylpyrimidine, 95% min
 67434-65-5 95%
5g
 $1147.00 2023-09-06
Chemenu
CM164930-1g
4-Chloro-5,6-dimethylpyrimidine
 67434-65-5 95%
1g
 $184 2021-08-05
Chemenu
CM164930-5g
4-Chloro-5,6-dimethylpyrimidine
 67434-65-5 95%
5g
 $505 2021-08-05
SHANG HAI XIAN DING Biotechnology Co., Ltd.
B-IN984-200mg
4-Chloro-5,6-dimethylpyrimidine
 67434-65-5 95+%
200mg
 172.0CNY 2021-07-12
TRC
T776210-25mg
4-chloro-5,6-dimethylpyrimidine
 67434-65-5
25mg
 $ 50.00 2022-06-02
TRC
T776210-50mg
4-chloro-5,6-dimethylpyrimidine
 67434-65-5
50mg
 $ 70.00 2022-06-02

4-Chloro-5,6-dimethylpyrimidine Production Method

4-Chloro-5,6-dimethylpyrimidine Related Literature

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