Basic Information
Pharmaceutical Grade Octadecanedioic Acid (CAS 871-70-5) is a high-purity C18 diacid intermediate used in the synthesis of Semaglutide and other GLP-1 receptor agonist APIs. Unlike general industrial-grade octadecanedioic acid, our Semaglutide Grade product is manufactured under strict pharmaceutical quality control, with defined water content, particle size distribution, and crystal form - critical parameters for large-scale production.
Joy Biotech supplies this Pharmaceutical Grade Octadecanedioic Acid from a dedicated production line, ensuring batch-to-batch consistency and eliminating cross-contamination risks. A COA sample for large-scale procurement is available upon request.
Product Specification
| Test items | Specification |
|
Appearance |
Off-white to gray solid |
|
Identification |
In accordance With the Standards |
|
Melting point |
122.0-130.0℃ |
|
Water |
NMT1.0% |
|
Loss on drying |
NMT1.0% |
|
Residue on ignition |
NMT0.5% |
| Particle Size Distribution | D50: 20–50 μm (Typical) |
| Crystal Form | Crystalline (confirmed by XRD) |
| Heavy Metals | NMT 20 ppm |
|
Purity |
NLT98% |
|
Storage condition |
Store in well containers and protect exposure to light |
Note: Full COA sample for large-scale procurement is available upon request. Please contact our team for the latest batch data.
Applications
Semaglutide API Synthesis
GLP-1 Receptor Agonist Intermediates
Peptide Drug Conjugation
Long-Acting Peptide Therapeutics
Pharmaceutical Grade C18 Diacid Building Blocks
Why Choose Us ?
1. Pharmaceutical Grade - Not Industrial Grade
This is Pharmaceutical Grade Octadecanedioic Acid, specifically manufactured for Semaglutide and other peptide APIs. Our specification controls:
Water content ≤ 0.5% (critical for coupling reactions)
Particle size distribution (D50: 20–50 μm) for consistent dissolution and handling in large-scale production
Crystal form confirmed by XRD, ensuring polymorphic consistency
2. Dedicated Production Line - No Cross-Contamination
Manufactured on a dedicated, segregated production line. No shared equipment with other APIs or intermediates. This ensures your downstream Semaglutide synthesis remains compliant with regulatory standards.
3. Large-Scale Supply - COA Sample Available
We support large-scale procurement with full documentation:
COA sample for large-scale buyers
Batch-specific particle size distribution data
XRD crystal form report
Karl Fischer water content report
Heavy metals and residue on ignition data
4. Scalable Packaging - From Grams to Kilograms
Small quantity: 1kg/carton
Bulk: 25kg/drum
Custom packaging: Available upon request
Fast delivery: By air, sea, or express (DHL, FedEx, TNT, UPS)
Company Profile
Joy Biotech is a professional supplier of pharmaceutical raw materials inncluding Octadecanedioic Acid, APIs,Intermediates, Dietary supplements, Cosmetic ingredients etc.
The R&D team consists of post-doctors, doctors, masters, bachelors in the field of Synthesis Biology, pharmaceuticals,chemistry etc.
As a reliable and professional supplier of active ingredients for pharmaceuticals and cosmetics, Joy Biotech also offers custom synthesis services, CMO and CDMO.
Looking forward to collaborating with you.



Our Service
Quick response and after-sales service
We will respond to you asap within 24hours.
Upon receipt of the goods, please contact us immediately if you encounter any issues.
Free sample service
Yes, we offer free samples for qualified buyers,but shipping costs may apply.
Customsynthesis/CDMO/CMO Service
We are able to develop custom compounds according to your specifications, or manufacture products based on your technical package.
FAQ

Our Certificates
Our certificates are complete and trustworthy




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