4,6-Dichloro-2-(methylthio)pyrimidine
4,6-Dichloro-2-(methylthio)pyrimidine (CAS 6299-25-8) is a halogenated heterocyclic compound with the molecular formula C5H4Cl2N2S. This pyrimidine derivative serves as a valuable building block in chemical synthesis. It is primarily utilised in research and development settings for the creation of more complex organic molecules, particularly within the pharmaceutical and agrochemical sectors. Its dichlorinated pyrimidine structure offers reactive sites for further chemical modification.
- Synonyms
- C5H4Cl2N2S4,6-dichloropyrimidin-2-yl methyl sulfide

Organic Synthesis Intermediate
4,6-Dichloro-2-(methylthio)pyrimidine is a key intermediate in the synthesis of various organic compounds. Its reactive chlorine atoms allow for nucleophilic substitution reactions, facilitating the construction of diverse molecular architectures.
Pharmaceutical Research
This compound is employed in the development of novel pharmaceutical agents. Its pyrimidine core is a common structural motif in many biologically active molecules, making it a useful starting material for drug discovery.
Agrochemical Development
The unique structure of 4,6-Dichloro-2-(methylthio)pyrimidine lends itself to the synthesis of potential agrochemicals, such as pesticides and herbicides. Researchers utilise its reactivity to create new compounds with desired biological activity.
Heterocyclic Chemistry
As a member of the halogenated heterocycles class, this pyrimidine derivative is instrumental in exploring new heterocyclic structures and their properties. It aids in advancing the field of heterocyclic chemistry.
| Molecular weight | 195.07 |
|---|---|
| Empirical formula | C5H4Cl2N2S |
| Assay | 98% |
| Boiling point | 135-136 °C/14 mmHg(lit.) |
| Melting point | 38-42 °C(lit.) |


Hazard statements
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 110 °C / 230 °F |
| Transport (UN / ADR) | UN 3263 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34-36/37 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4,6-Dichloro-2-(methylthio)pyrimidine used for?
+
4,6-Dichloro-2-(methylthio)pyrimidine is primarily used as a building block in organic synthesis, particularly for pharmaceutical and agrochemical research and development.
What is the CAS number and formula for 4,6-Dichloro-2-(methylthio)pyrimidine?
+
The CAS number is 6299-25-8, and the empirical formula is C5H4Cl2N2S.
What grade and purity does Tech Serve Solutions supply for 4,6-Dichloro-2-(methylthio)pyrimidine?
+
Tech Serve Solutions supplies 4,6-Dichloro-2-(methylthio)pyrimidine with an assay of 98%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the primary safety hazards associated with 4,6-Dichloro-2-(methylthio)pyrimidine?
+
This compound is classified as Danger. It causes severe skin burns and eye damage (H314) and may cause respiratory irritation (H335). Appropriate personal protective equipment, including eye protection, gloves, and respiratory protection, must be used when handling.
How is 4,6-Dichloro-2-(methylthio)pyrimidine packed, shipped, and exported?
+
Tech Serve Solutions professionally packs and exports 4,6-Dichloro-2-(methylthio)pyrimidine in compliance with all relevant international shipping regulations for hazardous materials.
How can I request a sample or quote for 4,6-Dichloro-2-(methylthio)pyrimidine?
+
To request a sample or quote for 4,6-Dichloro-2-(methylthio)pyrimidine, please use the contact form on our website or call our sales department directly.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis