Pepsin (CAS 9001-75-6) is supplied by Monuo Chemical for specialty chemical and custom synthesis purchasing. It is also searched as Pepsin A or pepsin from porcine gastric mucosa. Buyers typically look up the product name or CAS when sourcing an acidic protease enzyme for protein hydrolysis and biochemical R&D.
Key Specifications at a Glance
| Product Name | Pepsin (Pepsin A) |
|---|---|
| CAS Number | 9001-75-6 |
| EC Number | 3.4.23.1 |
| Molecular Weight | ~35 kDa (catalog value; enzyme) |
| Biological Source | Porcine gastric mucosa (supplier literature) |
| Chemical Class | Acidic protease / digestive enzyme |
| Optimal pH | About pH 1.5–3.5 (supplier literature) |
| Typical Use Area | Protein hydrolysis; biochemical / process R&D |
| Category | Custom synthesis |
| Documents | COA, TDS, SDS on request |
| Supply Origin | China | Worldwide shipping |
What Is Pepsin?
Pepsin (CAS 9001-75-6) is the principal acidic protease of gastric juice, commonly catalogued as Pepsin A (EC 3.4.23.1). It is produced from the inactive precursor pepsinogen and is active at low pH. As a protein enzyme, it does not have a single small-molecule formula; catalog molecular weight is about 35 kDa. Always match CAS 9001-75-6 on the batch COA.
Supplier and biochemical literature describe pepsin for protein hydrolysis, antibody Fab / F(ab′)₂ fragment preparation, collagen-related processing, food-protein modification and general protease assays. Porcine gastric mucosa is a common commercial source. Monuo Chemical supplies Pepsin as a specialty enzyme raw material under Custom synthesis, with batch identity documentation (COA / SDS). Finished-product claims, labeling and local regulatory filings remain the customer’s responsibility. Confirm activity units, grade and assay against the batch COA for your intended method.
Synonyms & Search Names
- Pepsin
- Pepsin A
- Pepsin from porcine gastric mucosa
- Pepsin from porcine stomach
- EC 3.4.23.1
- CAS 9001-75-6
Applications
In specialty chemical and custom synthesis projects, Pepsin is commonly reviewed for:
- Protein hydrolysis and peptide-mapping workflows
- Antibody Fab / F(ab′)₂ fragment preparation
- Collagen extraction and protein-modification process R&D
- Food / feed protein hydrolysate and digestibility assay support
- Catalog purchasing of defined acidic protease enzyme supply
Compare related specialty items such as Novobiocin sodium (CAS 1476-53-5) in the same Custom synthesis range.
Handling & Use Notes
- Activity check: Confirm enzyme activity / assay units (e.g., NF ratio or Anson units if listed) on the batch COA before use.
- pH control: Pepsin is active at acidic pH; verify pH and buffer compatibility for your method.
- Storage: Enzymes are often moisture- and temperature-sensitive; keep sealed and follow the batch COA / SDS (cold storage may be recommended).
- Safety: Follow the SDS for storage, PPE and waste handling. Use the batch SDS as the controlling safety document.
Need assay or packing discussion? Email [email protected] or use the contact form.
Packaging, Storage & Logistics
| Standard Pack Sizes | 50 g / 100 g bottles; 500 g / 1 kg packs (custom packing available) |
|---|---|
| Storage | Keep sealed, dry and protected from light and heat. Follow the batch COA and SDS |
| Shelf Life | Confirm shelf life on the COA for each lot |
| MOQ | Commercial MOQ discussed per project (often from 50 g); larger packs available on request |
| Lead Time | Stock items often ship promptly; custom pack / large lots typically 7–14 working days |
Quality & Documentation
For Pepsin (CAS 9001-75-6), Monuo Chemical can provide:
- Certificate of Analysis (COA)
- Technical Data Sheet (TDS) and Safety Data Sheet (SDS)
- CAS / product-name confirmation for your purchase file
- Flexible packing from grams to kilograms
- FOB / CIF / DAP terms as agreed
Our team aims to return technical data and quotations within 24 hours. See also Custom synthesis.
Request a Quote
Share your target activity / assay, pack size and destination. We will confirm availability and documentation for Pepsin CAS 9001-75-6.
Request a Quote | Email: [email protected]
Frequently Asked Questions
What is Pepsin (CAS 9001-75-6)?
It is an acidic protease enzyme (Pepsin A; EC 3.4.23.1) used for protein hydrolysis. Monuo Chemical lists it under Custom synthesis. Match CAS 9001-75-6 on the batch COA.
Does Pepsin have a molecular formula?
No. Pepsin is a protein enzyme, not a small molecule. Catalog references commonly cite about 35 kDa molecular weight. Confirm activity and grade on the batch COA.
Where is Pepsin typically used?
Typical uses include protein hydrolysis, antibody fragment preparation, collagen-related processing and protease assays. Finished-product claims remain the customer’s responsibility.
What is the biological source?
Porcine gastric mucosa / porcine stomach is the common commercial source cited in supplier literature. Confirm source and grade on the batch COA.
What specification do you supply?
Exact activity units and grade are confirmed on the Certificate of Analysis for each lot. Share your target specification when you request a quote.
How should Pepsin be stored?
Keep sealed, dry and protected from unnecessary light and heat; follow any cold-storage guidance on the batch COA and SDS.
How do I request a quotation for CAS 9001-75-6?
Share target activity, pack size and destination via the Request a Quote page or email [email protected]. We aim to reply within 24 hours.
Which related Custom synthesis products can I review?
You may also review 1,3-Diacetyl-2-imidazolidinone (CAS 5391-40-2) and 5-Vinylpyrrolidone (5-VP) (CAS 7529-16-0), or open the full Custom synthesis catalog.
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Disclaimer: Information is for specialty enzyme raw-material identification and technical reference. Finished-product claims and regulatory filings remain the customer’s responsibility. Verify each lot against the supplied COA and SDS. Trade terms are FOB / CIF / DAP as agreed.





