Dimethylmalonyl chloride
Dimethylmalonyl chloride (CAS 5659-93-8), with the linear formula (H₃C)₂C(COCl)₂, is a chemical intermediate featuring two acid chloride functional groups. Its molecular weight is 169.01 g/mol. This compound is valuable in organic synthesis as a building block for creating more complex molecules, particularly in the pharmaceutical and fine chemical industries. It is supplied by TSS with an assay of ≥96.0% (GC).
Organic Synthesis Intermediate
Serves as a versatile building block in organic chemistry for the synthesis of diverse compounds. Its difunctional nature allows for various coupling and derivatization reactions.
Pharmaceutical Precursor
Used in the multi-step synthesis of active pharmaceutical ingredients (APIs) and advanced intermediates. The molecule's structure is amenable to incorporation into various drug scaffolds.
Fine Chemical Manufacturing
Employed in the production of specialty chemicals requiring specific malonate ester or related functionalities. It facilitates the introduction of gem-dimethyl groups adjacent to carbonyls.
| Molecular weight | 169.01 |
|---|---|
| Linear formula | (H3C)2C(COCl)2 |
| Assay | ≥96.0% (GC) |
| Boiling point | 60 °C/10 mmHg(lit.) |
| Density | 1.278 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.448n20/D 1.451(lit.) |
Hazard statements
- H226Flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 51 °C / 123.8 °F |
| Transport (UN / ADR) | UN 2920 3(8) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 10-34 |
| 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 Dimethylmalonyl chloride used for?
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Dimethylmalonyl chloride is primarily used as a building block and intermediate in organic synthesis, particularly for pharmaceuticals and fine chemicals. It allows for the introduction of specific structural motifs into larger molecules.
What is the CAS number and formula for Dimethylmalonyl chloride?
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The CAS number is 5659-93-8 and the linear formula is (H₃C)₂C(COCl)₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Dimethylmalonyl chloride with an assay of ≥96.0% (GC). TSS does not represent this product as USP, BP, or EP grade.
How should Dimethylmalonyl chloride be handled safely?
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Dimethylmalonyl chloride is a danger to health and safety. It is flammable (H226) and causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including face shields, gloves, and respirators, must be worn. Handle in a well-ventilated area away from ignition sources.
Is Dimethylmalonyl chloride a controlled substance?
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The provided data does not indicate that Dimethylmalonyl chloride (CAS 5659-93-8) is a controlled substance.
How is Dimethylmalonyl chloride packed and exported?
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Dimethylmalonyl chloride is classified as UN 2920, Hazard Class 3 (Flammable Liquids) and 8 (Corrosive), Packing Group II. TSS ensures compliant packing and export procedures according to international regulations.
How can I request a sample or quote for Dimethylmalonyl chloride?
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To request a sample or a quote for Dimethylmalonyl chloride, please contact the TSS sales team through our website or by calling us directly.
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