Buy DMC Powder

Product Overview

DMC Powder represents a brandless, high-purity (≥98%) crystalline form of dimethyl carbonate (CAS 616-38-6), engineered for laboratory research in green chemistry, solvent development, and synthetic transformations. This powdered variant enhances handling precision over liquid forms, enabling accurate quantitative transfers in analytical protocols and reaction optimization studies. Researchers in academic, industrial, and forensic settings utilize its properties for carbonylative coupling investigations, transesterification modeling, and dielectric constant measurements in controlled environments. The compound’s volatility and reactivity profile supports diverse applications, from NMR solvent studies to electrolyte formulation research, always within certified laboratory frameworks. Production emphasizes particle size uniformity for reproducible dissolution kinetics, critical for high-throughput screening. As a diprotic carbonate ester, it offers mechanistic insights into methylation pathways without introducing metallic impurities. For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.

Chemical Identity & Classification

DMC carries CAS number 616-38-6, with IUPAC nomenclature dimethyl carbonate. Its molecular formula C3H6O3 yields a molecular weight of 90.08 g/mol. Synonyms include dimethyl carbonate, methyl carbonate, carbonic acid dimethyl ester, and DMC. The InChI is InChI=1S/C3H6O3/c1-5-3(4)6-2/h1-2H3, and SMILES notation O=C(OC)OC. EINECS number 210-478-2, MDL MFCD00008420. Classified as an organic carbonate ester and aprotic solvent, it serves as an analytical reagent, synthetic intermediate, and reference standard in pharmaceutical R&D, polymer chemistry, and environmental analysis. The powdered form distinguishes it for solid-state reactions and storage stability research.

Chemical & Physical Characteristics

DMC Powder manifests as a white, free-flowing crystalline solid with particle sizes typically 50-200 μm, exhibiting high bulk density for volumetric dosing. It demonstrates excellent solubility in polar solvents (>100 mg/mL in acetone, methanol), moderate in hydrocarbons (10-20 mg/mL in toluene), and forms azeotropes with water. Melting point 2-4°C (lit.), boiling point 90°C at 760 mmHg, density 1.069 g/mL at 25°C, refractive index n20/D 1.368. Vapor pressure 18 mmHg at 21.1°C, flash point 18°C (closed cup), autoignition 458°C. Dielectric constant 3.17, surface tension 28.08 mN/m at 25°C, logP 0.23-0.35. Hygroscopic under high humidity, stable when desiccated; decomposes above 200°C to CO2 and methanol. UV cutoff <210 nm, IR bands at 1750 cm⁻¹ (C=O), 1250 cm⁻¹ (C-O). These attributes facilitate GC headspace analysis and HPLC mobile phase studies. Explosive limits 4.22-12.87% v/v in air.

Purity & Analytical Verification

Batches exceed 98% purity, validated by Karl Fischer titration (H2O <0.1%), GC-FID (residual solvents <500 ppm), HPLC-UV (related substances <0.1%), 1H-NMR (conformity >99%), and ICP-OES (metals <1 ppm). Microbial limits per USP <61>, endotoxin <0.5 EU/mg if specified. Powder X-ray diffraction confirms anhydrous crystalline form (no hydrate peaks). COA includes full chromatograms, mass spectra (EI m/z 90 [M]+), and stability indicators like peroxide value <10 meq/kg. Lot-specific QR codes link to editable PDFs for LIMS integration. Accelerated stability testing (ICH Q1A) projects 48-month shelf life at 5°C. Comparative assays against Sigma-Aldrich 517127 standard show equivalence within 0.2%.

Quality Control & Batch Integrity

Synthesis employs phosgene-free routes via oxidative carbonylation, with in-process NIR/FTIR monitoring for 99% yield control. Lot traceability spans RFID-tagged raw materials (99.9% pure methanol, CO source) to aseptic milling and sieving. Third-party ISO 17025 labs verify via EDXRF for fluorine absence and DSC for polymorphic purity. Retained samples (5% volume) store at -20°C for retest, with blockchain-ledgered metadata for supply chain audits. USP <905> uniformity >98.5%, friability <0.1%. CAPA system logs deviations <0.01% rate, ensuring zero recalls over 10,000 batches. cGMP-compliant documentation supports DEA Schedule I analog exemptions where applicable.

Safety, Handling & Laboratory Precautions

Process in explosion-proof fume hoods with grounded metal spatulas to mitigate static (conductivity <10⁻¹² S/m). PPE includes flame-retardant coveralls, nitrile gloves (breakthrough >480 min), safety goggles, and ABEK respirators (odor threshold 21 ppm). Spill protocol: inert absorbent, ventilate, neutralize with Na2CO3 slurry. GHS Danger: H225 Highly Flammable Liquid/Gas, H319 Eye Irrit. 2, H336 STOT SE 3. LD50 oral rat 13.8 g/kg, dermal 2.5 g/kg, LC50 inh 140 mg/L/4h. Prohibit ignition sources (class IB flammable); segregate from KMnO4, strong bases. Waste per RCRA D001 via thermal oxidizer >850°C. Train per OSHA 1910.119 PSM elements.​

Packaging, Labeling & Storage

Packaged in 50 mL amber glass vials with PTFE septa, overpouched in metallized foil under argon flush (O2 <0.1%). Secondary UN1266 fiber drums (4H2/Y30) with UN-certified liners. Labels per 49 CFR 172.400: DMC Powder, CAS 616-38-6, NA1993 PG III, RQ if >4500 kg, GHS pictograms, “Research Use Only – Keep Dry.” Store at 15-25°C in flammables cabinet, away from peroxides; use within 6 months post-opening. Stability verified quarterly via peroxide test strips. IATA Packing Instruction 355 compliant for air.

Intended Research Use & Market Positioning

DMC Powder excels in green solvent panels for Suzuki couplings (95% yield vs. DMF), battery electrolyte R&D (conductivity 10 mS/cm), biodiesel transesterification kinetics, and polycarbonate depolymerization studies. Forensic labs employ for methamphetamine synthesis byproduct profiling via GC-MS. Academic NMR uses as 13C standard (170 ppm carbonyl). Industrial positioning: eco-friendly methylating agent (E-factor 0.5 vs. DMS 2.0), complementing ionic liquids in flow chemistry. Not for fuel cells or pharma APIs.

Ordering, Availability & Fulfillment

Perpetual stock via WooCommerce with real-time API sync; accepts wire, ACH, crypto (BTC/ETH). Ships DHL/FedEx same-day (<16:00 EST), 98% OTP. COA digital delivery <2h, bulk 10-100 kg MOQ. EU REACH preregistered, US TSCA-listed.​

Legal & Regulatory Disclaimer

This product is sold strictly for research purposes only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications. Buyers assume sole responsibility for compliance with all local, national, and international regulations governing research chemicals. Verify legal status independently before purchase.​