TCS Industries Limited (China-sourced API supplier) supplies Calcium Stearate –- Lubricant & Anti-Caking Excipient CAS 1592-23-0 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Overview
| Product Name | Calcium Stearate –- Lubricant & Anti-Caking Excipient |
|---|---|
| Structural Formula |  |
| CAS Number | 1592-23-0 |
| Molecular Formula | C36H70CaO4 |
| Molecular Weight | 607.0 g/mol |
| InChIKey | CJZGTCYPCWQAJB-UHFFFAOYSA-L |
| SMILES | Available on request where applicable |
| Appearance | White, fine, light powder |
| Purity / Grade | By agreed specification and batch COA |
| Storage | Keep tightly closed in a cool, dry, well-ventilated place |
Calcium Stearate (CAS 1592-23-0) is the calcium salt of stearic acid with the formula Ca(C₁₈H₃₅O₂)₂ (MW 607.02). It is a white, waxy powder used as a tablet and capsule lubricant in pharmaceutical manufacturing, preventing sticking of powder to punch faces and die walls during compression. Calcium stearate is also used as a release agent, stabilizer, and flow aid in food, plastics, and cosmetic applications.
TCS Industries Limited, a Hong Kong-based trading and sourcing company, supplies Calcium Stearate in pharmaceutical (NF) and food grades for global procurement programs.
> Applications
Pharmaceutical tablet lubricant
Calcium stearate is used at 0.5–2.0% as a lubricant in tablet and capsule formulations. It reduces friction between compressed powder and die wall/punch surfaces, preventing sticking and picking. It is an alternative to magnesium stearate when magnesium content is undesirable (e.g., in magnesium-sensitive formulations). Wang et al. (Int J Pharm, 2010, 399:102–108) compared the lubrication efficiency and compactability effects of calcium stearate and magnesium stearate in direct compression formulations.
Food additive and plastics stabilizer
Calcium stearate (E470a) is used in food processing as an anticaking agent, release agent, and emulsifier in confectionery, baked goods, and supplements. In plastics (PVC), it functions as a heat stabilizer and lubricant. In cosmetics, it is used as a thickening and opacifying agent.
> Sourcing & Supply
TCS Industries Limited supports development, qualification and commercial purchasing discussions for Calcium Stearate –- Lubricant & Anti-Caking Excipient with buyers in South America, Europe, the United Kingdom, Australia, New Zealand, Mexico and Canada.
- Evaluation and commercial quantities: 25 kg bags for qualification; pallet for production. Pharmaceutical (NF) and food (E470a) grades available.
- Pallet quantities and production campaigns: repeat supply is coordinated against packaging, lead time, annual demand and destination-market import requirements.
> Quality & Documentation
Key specification parameters include calcium content (6.4–7.1%), free fatty acid, loss on drying (≤4.0%), residue on ignition (9.0–10.5%), heavy metals (Pb ≤10 ppm), arsenic, particle size, and microbial limits. White, fine, bulky powder with slight fatty odor. Stearic acid content ≥40% of total fatty acids. Meets NF monograph. COA and MSDS are standard.
> Packaging
Calcium stearate is a fine, white, bulky powder. It is hydrophobic and non-hygroscopic. Standard packaging includes 25 kg multiply paper bags with PE liner, palletized. Store at room temperature in dry conditions. Shelf life is typically 24 months. Labels and documents are checked before dispatch.
> Pricing & MOQ
Pricing is quoted by specification, packaging and destination. Common commercial discussions use 25 kg bag/drum formats, pallet quantities and production-campaign planning; smaller samples may be reviewed for qualified formulation teams.
> Regulatory & Compounding Context
Calcium stearate is monographed in NF (Calcium Stearate). Approved as a food additive in the EU (E470a). GRAS in the US (21 CFR 184.1229). Listed in the FDA IID for oral dosage forms. Also listed in JP. No special import permits.
> Alias Index
- Chemical name: Calcium distearate
- CAS Number: 1592-23-0
- Formula: Ca(C₁₈H₃₅O₂)₂ (MW 607.02)
- EU food additive: E470a
- Pharmacopoeial: NF (Calcium Stearate)
- Related lubricants: Magnesium stearate, Stearic acid, Sodium stearyl fumarate
- Commercial request terms: calcium stearate NF, E470a, tablet lubricant, pharma grade calcium stearate, TCS Industries Limited
> FAQ
How does Calcium Stearate compare to Magnesium Stearate?
Both are metallic stearate tablet lubricants used at 0.5–2.0%. Magnesium stearate is more commonly used and has slightly better lubrication efficiency. Calcium stearate is preferred when magnesium ions are incompatible with the API, or when a vegetable-origin certified lubricant is specified. Both have similar hydrophobic effects on dissolution and compactability.
What documents are available for Calcium Stearate –- Lubricant & Anti-Caking Excipient orders?
COA and MSDS are standard for commercial discussions. COO, packing list, invoice and other import-support documents can be arranged according to order scope.
Can TCS Industries Limited support Calcium Stearate –- Lubricant & Anti-Caking Excipient supply to South America?
Yes. We support B2B buyers in Argentina, Colombia, Chile, Peru, Ecuador, Uruguay, Bolivia, Brazil, Paraguay, Venezuela, Guyana and Suriname, subject to route and document review.
Do you support Europe, the United Kingdom, Australia, New Zealand, Mexico and Canada?
Yes. These destinations can be reviewed for project supply, import documents, packaging and logistics planning before quotation.
Does Calcium Stearate affect tablet dissolution?
Yes. Like all metallic stearate lubricants, calcium stearate is hydrophobic and can retard tablet wetting and dissolution if over-blended or used at excessive concentrations. Minimize blending time (2–5 minutes), use the lowest effective concentration (0.5–1.0%), and validate dissolution profiles during formulation development.
Is Calcium Stearate suitable for vegetarian capsules?
Yes, provided the stearic acid source is vegetable-derived (palm or soy). Specify vegetable-origin calcium stearate at inquiry. Most pharmaceutical-grade calcium stearate is available in both animal (tallow) and vegetable origin. Vegetable-origin material meets halal, kosher, and vegetarian certification requirements.
Can you arrange samples before commercial purchasing?
Samples or evaluation quantities may be reviewed for qualified buyers after target specification, application and destination-market requirements are clarified.
How is Calcium Stearate –- Lubricant & Anti-Caking Excipient packaged for export?
Packaging is confirmed by quantity and material properties. Typical options include foil bags, HDPE containers, fibre drums, 25 kg bags or palletized export packaging.
Can buyer-defined specifications be reviewed?
Yes. Send the specification, methods, impurity limits and required documents. TCS can review feasibility before confirming quotation and lead time.
What payment terms are normally used?
Standard payment is 100% T/T before dispatch unless a different arrangement has been approved for an established commercial account.
What lead time should buyers expect?
Lead time depends on stock, batch size, document scope and destination. Available stock can move faster; made-to-order or pallet programs require longer planning.
What is the difference between Calcium Stearate and Stearic Acid?
Calcium stearate is the calcium salt; stearic acid (CAS 57-11-4) is the free fatty acid. Calcium stearate provides better lubrication (lower coefficient of friction) than stearic acid. Stearic acid is used as a binder and hardening agent in tablets, not primarily as a lubricant. They have different functional roles in formulation.
Last reviewed: June 2026
Evaluation and research orders (≤10 kg) are shipped with COA, MSDS, and certificate of origin. Bulk commercial orders (>10 kg) qualify for volume pricing with a full technical documentation package available on request.
> Request a Quote
If your team already has a target application, estimated quantity, destination market, or documentation requirements, send those details so the commercial response can be prepared more efficiently.