α-Chymotrypsin (MS), CAS No.9004-07-3

CAS: 9004-07-3 Cat. No.: C1455924 EC Number: 232-671-2 PubChem CID: 4052643
AVAILABLE TO ORDER
GRADE & PURITY Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Bioactive ? Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure. Suitable for mass spectrometry (MS) ? MS grade — low non-volatile and ionic residues compatible with mass spectrometry. Use to minimize background and ion suppression in MS workflows. Native ? Native grade — protein/biomolecule in its natural (non-recombinant, non-denatured) form. Use when native structure and activity are required. EnzymoPure™ ? EnzymoPure™ — Aladdin's line of high-quality enzymatic solutions. Use when enzyme purity and defined activity drive assay or process performance. Lyophilized powder ? Lyophilized (freeze-dried) powder — gently dried to preserve activity and aid storage. Use for sensitive biologics reconstituted before use. for Protein sequencing ? Protein-sequencing grade — ultra-clean reagents for Edman/MS sequencing. Use where contaminants would obscure sequence determination. from bovine pancreas; ≥30 U/mg protein (see COA for assay result)
Accession #
P00766,P00767
Bioactivity
≥30U/mg protein
★
Size
USA
Germany (EU)*
Price
Qty
50μg
C1455924-50μg
3 In stock
—
$179.90
Enter a quantity for the sizes you want to add.
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Why this grade

Carrier Free, Bioactive, Suitable for mass spectrometry (MS), Native, EnzymoPure™, Lyophilized powder, for Protein sequencing, from bovine pancreas; ≥30 U/mg protein (see COA for assay result) Bioactive,Carrier Free,for Protein sequencing,Lyophilized powder,Native,Suitable for mass spectrometry (MS),EnzymoPure™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 37 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Product Name
α-Chymotrypsin (MS), CAS No.9004-07-3
Synonyms
chymotrypsin | alpha-chymotrypsin | chymotrypsin A | chymotrypsin B
Grade
Bioactive, Carrier Free, for Protein sequencing, Lyophilized powder, Native, Suitable for mass spectrometry (MS), EnzymoPure™
Specifications & Purity
Carrier Free, Bioactive, Suitable for mass spectrometry (MS), Native, EnzymoPure™, Lyophilized powder, for Protein sequencing, from bovine pancreas; ≥30 U/mg protein (see COA for assay result)
Bioactivity
≥30U/mg protein
Accession #
Predicted molecular weight
25 kDa
CAS
9004-07-3
Enzyme Commission Number
3.4.21.1
Molecule Type
Enzyme
Product Line
Biological Products
Storage and Shipping
Concentration
from bovine pancreas; ≥30 U/mg protein (see COA for assay result)
Reconstitution
Reconstitute in Ultrapure water‌ to a concentration of 0.5 mg/mL. Stored at-20℃ for 3 months after reconstitution.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20℃ long term (2 year). Avoid freeze/thaw cycle.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

2 results found

Lot NumberCertificate TypeDateItem
ZJ26F0939615Certificate of AnalysisOct 08, 2026 C1455924
ZJ25F1230626Certificate of AnalysisDec 26, 2025 C1455924
Documents & Articles
Introduction: “Suitable for Mass Spectrometry”
Clean Extracts, Smart Solvents: The Natural Extraction Reagent Playbook
For Protein Sequencing
MS Grade
MS-Grade Enzymes:“Molecular Scissors” for Precision Proteomics Analysis
Protein Molecular Weight Standards
A Technical Review of Aprotinin: Structural Features, Mechanisms of Action, and Applications
Commonly Used Proteases in Research: Fundamentals and Representative Applications
Review of Chymotrypsin: Enzymological Properties, Catalytic Mechanism, and Research Applications
Comparison of Low-pH, High-pH, and Enzymatic Antigen Retrieval Systems in IHC
Functional Differences Between Endopeptidases and Exopeptidases and Their Applications in Disease Mechanism Research
The Logic of Biomimetic Peptide Action in Skin: Sequence and Conformation, Skin Delivery, Stability, and Target Matching
Catalytic Mechanisms, Classification Characteristics, and Experimental Applications of Serine Endopeptidases
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

How should this product be stored?
Store at ?20 °C. Avoid repeated freeze–thaw cycles. Aliquot into single-use volumes before freezing.

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