High-purity malonic acid

Description

1. Product Overview
High-purity malonic acid (CAS 141-82-2) is a premium dicarboxylic acid intermediate, engineered for demanding organic synthesis and pharmaceutical manufacturing. Its primary industrial use lies as a critical building block in the production of barbiturates, flavorings, fragrances, and specialty polyester resins. The key value proposition is batch-to-batch consistency at ≥99.5% purity, enabling higher reaction yields and lower downstream purification costs. Strategically, it serves as a reliable substitute for less stable beta-keto esters, positioning it as essential for supply chains prioritizing regulatory compliance and process efficiency.

2. Key Specifications & Technical Characteristics

• Chemical composition: Malonic acid (HOOC–CH₂–COOH) – dicarboxylic acid, ≥99.5% assay

• Purity grade: Industrial/Pharma-intermediate grade (99.5% min.; moisture ≤0.3%)

• Physical characteristics: White crystalline powder; particle size 20–80 mesh (adjustable); bulk density 0.65–0.75 g/cm³; melting point 132–135°C

• Packaging options: 25 kg multi-layer kraft/PE bags; 500 kg FIBCs; custom moisture-barrier liners for tropical shipments

• Shelf life: 24 months when stored below 30°C in sealed, dry conditions (avoids decarboxylation risk)

3. Core Industrial Applications

• Pharmaceutical intermediates: Synthesis of sodium amobarbital, phenobarbital, and other malonate-derived APIs. Outperforms ethyl malonate in direct condensation reactions, reducing solvent usage by ~18%.

• Flavors & fragrances: Production of fruit esters (e.g., apple, grape, pineapple) via malonic ester synthesis. Delivers superior olfactory purity versus lower-grade acids, minimizing off-notes.

• Agrochemicals: Intermediate for plant growth regulators (maleic hydrazide) and fungicides. Its high purity eliminates catalyst poisoning in heterogenous reactions, increasing yield from 82% to 94%.

• Specialty polyesters & coatings: Crosslinking agent for high-solid thermosets. Provides better thermal stability than succinic or adipic acid in low-VOC formulations.

4. Competitive Advantages

• Quality consistency: ISO 9001:2025 certified with SGS or Bureau Veritas third-party COA per lot; heavy metals (Pb, As, Hg) <1 ppm.

• Supply reliability: Dual-sourcing from two independent production blocks (China & India) with 500 MT/month total capacity; 48-hour force majeure contingency.

• Logistics capability: Pre-shipment QC holds and fumigated pallets; expedited air freight option for R&D-scale orders (1–5 MT).

• Price competitiveness: Direct mill pricing, 8–12% below regional distributors on FOB basis for annual contracts ≥100 MT.

• Sustainability: 100% biodegradable; non-regulated under REACH Annex XIV; no SVHC. Full EHS data sheets and carbon footprint declaration available.

• Technical support: Dedicated PhD-level application scientists for process integration; custom particle sizing and anti-caking treatment upon request.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 5 MT (trail lot) – 20 MT (standard commercial)

• BULK 20MT loading capacity: 20 MT per 20-foot dry container (20 pallets × 25 kg bags = 20 MT exactly; FIBC option: 20 MT = 20 × 1,000 kg bags)

• Loading capacity per 40-foot HC container: 25 MT (max net weight, with air circulation spacers