Import 75-11-6diiodomethane — Buy in Bulk from Supplier in China

Diiodomethane, CAS number 75-11-6, is a dense halogenated organic liquid with formula CH2I2, used primarily as a reagent in organic synthesis and as a high-density solvent for separation techniques. Liaoning Cured Medical Technology Co., Ltd. supplies this compound from their base in Panjin, Liaoning Province, China. The source description indicates high-purity grade material without specifying exact assay, so buyers should request a certificate of analysis showing GC or titrimetric assay percentage, typically 99.0% or higher for synthesis-grade diiodomethane. The compound appears as a clear, colourless to pale yellow liquid with a characteristic sweet, iodine-like odour, and decomposes on exposure to light with liberation of iodine.

The material is sensitive to light, heat, and moisture, necessitating storage in amber glass containers under inert atmosphere at reduced temperature. Typical density is approximately 3.325 g/cm3 at 20°C, making it one of the heavier common organic liquids and useful in density-gradient separations. Refractive index is high, approximately 1.742 at 20°C (D line), a property exploited in optical and contact-angle measurements. Stability is compromised by aluminium, magnesium, and strong bases; decomposition products include hydrogen iodide and elemental iodine. Standard stabilisation may include copper wire or phosphorus to scavenge free iodine, though buyers should confirm with Liaoning Cured Medical Technology Co., Ltd. whether their material contains stabilisers and which type.

Principal applications include use as a methylene source in Simmons-Smith cyclopropanation reactions, as a heavy solvent in mineral separation by dense-media methods, and in refractive index matching for optical microscopy. Pharmaceutical and agrochemical research laboratories consume this material for route-of-synthesis development, while fine chemical manufacturers employ it in specialised intermediate production. The listing does not state MOQ, price, or lead time; buyers should confirm these directly with the supplier. Packaging is typically amber glass bottles with polyseal caps for laboratory quantities, or UN-certified steel or composite drums for bulk shipment, though exact options require verification. Given the supplier's harbour trust tier and 0.00% response rate, prospective buyers should initiate contact early and consider requesting a sample batch before committing to bulk orders.

Liaoning Cured Medical Technology Co., Ltd. operates from Shuangtaizi Industry Park, A19, in Panjin, Liaoning Province, China, postal code 124000. The supplier carries a harbour trust tier with a 0.00% response rate and zero recorded average response hours, indicating minimal active engagement through the platform channel. The company name suggests specialisation in medical or pharmaceutical-grade chemicals, though the available data does not confirm GMP certification, API manufacturing licence, or specific regulatory filings. Buyers should verify business registration, chemical production licence, and hazardous materials handling permits directly, given that diiodomethane falls under regulated chemical categories in many jurisdictions.

The listing provides no information on production scale, R&D capabilities, in-house analytical equipment, or export experience. Liaoning Cured Medical Technology Co., Ltd.'s location in Panjin places it within Liaoning's petrochemical and fine chemical corridor, which offers access to iodine and iodide raw material supply chains, though this geographic advantage should not be assumed without confirmation. The supplier does not disclose quality management certifications, customer references, or technical support availability in English. Due diligence should include verification of ISO 9001 or equivalent quality system, request for audited financials, and confirmation of experience shipping hazardous chemicals internationally, including IATA/IMDG compliance for air and sea freight.