100% USP Grade Pure Castor Oil

Category : Oils

$27.50
Quantity
Size:
Variation:

Need a different spec?

Other Grades & Concentrations

Available in other grades and concentrations:

100% Pure Castor Oil ACS Grade
From $24.20
CAS: 8001-79-4 C18H34O3
100% Pure Castor Oil
From $24.20
CAS: 8001-79-4 C18H34O2
$27.50
Other Grades & Concentrations

Available in other grades and concentrations:

100% Pure Castor Oil ACS Grade
From $24.20
CAS: 8001-79-4 C18H34O3
100% Pure Castor Oil
From $24.20
CAS: 8001-79-4 C18H34O2

100% USP Grade Pure Castor Oil

$27.50

Commercial Fulfillment Snapshot

Buy 100% USP Grade Pure Castor Oil with faster decisions and fewer back-and-forth emails.

Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.

Technical Documents

Lot-specific COA is issued per shipment batch.

Who Buys This
  • Pharmaceutical manufacturers
  • Medical device companies
  • Research laboratories
  • Quality control labs
  • Cosmetic formulators
Purity / Grade Guide
  • USP Grade pharmaceutical applications
  • Medical & cosmetic formulations
  • Regulated manufacturing processes
  • High purity requirements
Pack Sizes
  • 1 Quart: lab & small jobs
  • 1 Gallon: shop & maintenance
  • 5 Gallon: production & regular use
  • 15 Gallon: mid-volume operations
  • 55 Gallon: bulk drum
  • 275 Gallon: high-volume tote
  • 330 Gallon: max-volume tote
SDS / COA / TDS
  • Safety Data Sheet included
  • Certificate of Analysis provided
  • USP compliance documentation
  • Non-regulated ground shipment
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.

Why 100% USP Grade Pure Castor Oil

100% USP Grade Pure Castor Oil delivers the stringent purity standards and precise chemical consistency demanded by regulatory-driven manufacturing sectors. Formulators choose this exact United States Pharmacopeia certified grade because it guarantees strict compliance for pharmaceutical, cosmetic, and personal care formulations. As a 100% concentration of C18H34O2 (CAS 8001-79-4), this pale yellow viscous liquid provides a reliable, translucent, and smooth base material without introducing unverified impurities. The exact chemical profile ensures predictable behavior during compounding, while its water insoluble nature and high flash point of 246 establish stability under thermal stress. Buyers responsible for passing strict regulatory audits depend on this USP verification to establish a documented baseline of purity, ensuring the oil meets exact pharmacopeial requirements before it ever enters a sensitive production run.

Best Applications for This Grade

  • Commonly applied in pharmaceutical manufacturing as an excipient and trusted delivery vehicle, where strict USP certification validates the baseline purity required for both topical ointments and internal formulations.
  • Commonly applied in the formulation of cosmetics and personal care items, functioning as an effective emollient that leverages the translucent smooth texture of the oil to provide thick, stable viscosity to lip balms, skin creams, and specialty soaps.
  • Commonly applied in the production of bio-based polyurethanes and advanced polymer resins, where the 100% concentration ensures strict moisture control and predictable hydroxyl functionality, preventing unwanted side reactions during polymerization.
  • Commonly applied in specialized industrial coatings and lubricants that demand an organic solvent soluble additive, utilizing the high flash point of 246 to maintain stability in high-temperature environments while remaining completely water insoluble.

When to Choose a Different Grade

  • If the manufacturing process requires a raw material that dissolves readily in aqueous systems, as this unmodified C18H34O2 formula is strictly water insoluble and only organic solvent soluble.
  • If the specific formulation requires a solid or semi-solid structural component at room temperature, requiring a chemically modified hydrogenated castor oil rather than a translucent smooth liquid.
  • If the end product necessitates an emulsifier or surfactant capable of mixing oil and water phases together, necessitating an ethoxylated castor oil rather than this 100% pure base oil.
Property Value
Molecular Weight 0.0
Formula C18H34O2
Assay 99-100.5%
Grade USP Grade
Flash Point 246°C (474.8°F)
Form Liquid
Solubility Insoluble in water, soluble in organic solvents
Appearance Clear to pale yellow liquid
Melting Point -18
Boiling Point 313
Specific Gravity 0.961
Industry Pharmaceutical, Cosmetics, Industrial, Manufacturing, Chemical Processing

Frequently Asked Questions About 100% USP Grade Pure Castor Oil

What is 100% USP Grade Pure Castor Oil and what is its chemical formula?
100% USP Grade Pure Castor Oil is a chemical compound with the molecular formula C18H34O2, registered under CAS Number 8001-79-4 by the Chemical Abstracts Service (PubChem), with a molecular weight of 282.47 g/mol. Alliance Chemical supplies 100% USP Grade Pure Castor Oil in USP grade for laboratory, industrial, and commercial applications.
What are the physical properties of 100% USP Grade Pure Castor Oil?
According to the NIOSH Pocket Guide to Chemical Hazards, 100% USP Grade Pure Castor Oil has a pale yellow viscous liquid, translucent smooth appearance. It has a melting point of -18°C (-0.4°F)°C, a boiling point of 313°C (595.4°F)°C, a flash point of 246°C (474.8°F). Solubility: Organic solvent soluble, water insoluble.
What grade and purity of 100% USP Grade Pure Castor Oil does Alliance Chemical offer?
Alliance Chemical offers 100% USP Grade Pure Castor Oil in USP grade with a purity assay of 100%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of 100% USP Grade Pure Castor Oil?
100% USP Grade Pure Castor Oil has applications in laboratory research, manufacturing, and industrial processing.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling 100% USP Grade Pure Castor Oil?
OSHA-mandated PPE per 29 CFR 1910.132-138:Nitrile gloves (8+ mil), safety goggles, flame-resistant clothing, grounded footwear, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for 100% USP Grade Pure Castor Oil?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:oxidizers, ignition sources. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for 100% USP Grade Pure Castor Oil?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Absorb with vermiculite or commercial spill kits. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for 100% USP Grade Pure Castor Oil?
DOT Classification per 49 CFR 172.101:UN1993 (Flammable Liquid, N.O.S.), Hazard Class3 (Flammable), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must 100% USP Grade Pure Castor Oil waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D001 (Ignitable, flash point <60°C). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for 100% USP Grade Pure Castor Oil?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of 100% USP Grade Pure Castor Oil. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.