High-purity malonic acid

Description

1. Product Overview
High-purity malonic acid (CAS 141-82-2) is a critical dicarboxylic acid intermediate, manufactured to a minimum 99.5% assay for demanding industrial synthesis. Its primary industrial use lies in the production of pharmaceuticals, agrochemicals, and high-performance flavors & fragrances, where it serves as a key building block for malonate esters and substituted acetic acids. The key value proposition is batch-to-batch consistency that minimizes reaction side products and maximizes synthesis yield, directly reducing downstream purification costs. This product is strategically important as global supply chains tighten; securing a verified, high-purity source de-risks production for generic APIs, crop protection actives, and specialty chemicals.

2. Key Specifications & Technical Characteristics

• Chemical composition: Malonic acid (HOOC–CH₂–COOH); impurity profile controlled (acetic acid, maleic acid, water)

• Purity grade: ≥99.5% (titration / HPLC); Pharma-intermediate grade

• Physical characteristics: White crystalline powder; odorless; particle size D90: 150–300 µm; bulk density: 0.65–0.75 g/cm³; melting point: 135–137°C

• Packaging options: 25 kg multi-layer kraft paper bags with PE liner; 500 kg big bags; 1000 kg palletized shrink-wrapped units

• Shelf life: 24 months when stored in original unopened packaging in dry, ambient conditions (<30°C, <60% RH)

3. Core Industrial Applications

• Pharmaceutical synthesis: Used to manufacture sodium malonate, barbiturates (e.g., phenobarbital), and vitamin B1/B6 intermediates. Outperforms lower-grade malonic acid due to lower residual acetic acid, which avoids unwanted transesterification in API synthesis.

• Agrochemicals: Key precursor for plant growth regulators (maleic hydrazide, malathion intermediates) and herbicide safeners. Higher purity yields superior conversion rates (97–99% vs. 90–93% for standard grades), reducing raw material spend by 8–12% per batch.

• Flavors & fragrances: Enables production of malonate-derived esters (e.g., ethyl malonate for fruit notes). Low moisture content prevents ester hydrolysis during storage, ensuring consistent olfactory profiles.

• Electroplating & surface finishing: Used as a brightener additive in nickel and copper plating baths. High purity eliminates organic contaminants that cause pitting or dull finishes.

4. Competitive Advantages

• Quality consistency: SPC-monitored production with ISO 9001:2025 certification; each lot includes CoA with 12 analytical parameters (HPLC, water content, residue on ignition, metal traces).

• Supply reliability: Dual-sourced raw materials + buffer stock held in regional hubs (Asia, EU, North America). Typical lead time: 14 days ex-warehouse.

• Logistics capability: Dangerous Goods classification (UN 3265, Class 8) handled via certified 3PL partners; full IMDG/ADR documentation provided.

• Price competitiveness: Direct mill contract eliminates trader markups; volume-tiered pricing from 10 MT/month.

• Sustainability: By-product recycling system reduces waste water COD by 40% vs. industry average; non-phthalate packaging.

• Technical support: Dedicated application lab for method development (HPLC methods, reaction optimization) included for contract buyers.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 10 MT (full truckload equivalent) for standard 99.5% grade; 5 MT trial lots available at 10% premium

• BULK 20MT Loading capacity: 20 MT per 20-foot standard container (800 × 25 kg bags palletized: 20 pallets of 40 bags each, or 20 × 1000 kg big bags)