BIOPHEN HEPARIN Anti-IIa (2 Stages) - Replaced by A220005

This product has been updated and replaced with two products, A220005 (reagents) and AAR031K (buffer).
BIOPHEN HEPARIN Anti-IIa (2 Stages) - Replaced by A220005
Code: A221025-USP
Manufacturer’s Part Number: 221025
Shipping Weight: 0.50 pounds
Quantity in Basket: None
Price: $350.00

Product Description

Chromogenic anti-IIa method for measuring homogeneously heparin in plasma (tested diluted 1:25) or in purified systems, using a two-stage method. Offers a wide measurement range from 0 to 1 IU/mL for plasma, or from 0.002 to 0.04 IU/mL for purified systems and is appropriate for testing heparins for their anti-thrombin activity. This assay is in compliance with USP Anti-FIIa assay for unfractionated heparin.

Please see important notification letter from the manufacturer regarding the use of this product.


SKU ID# Packaging Website Links
A221025-USP Kit
Assay Characteristics Kit Components Applications
Total Assay Time: < 3 min.
Detection Threshold: <0.1 IU/mL
Dynamic Range: 0 to 1 IU/mL
When Diluted 0 to 0.04 IU/mL
Intra-Assay CV: < 3%
Inter-Assay CV: < 5%
Number of Tests:
(Manual Microplate Method)
2x100 Tests
R1: 2x1 mL ATIII.

R2: 2x1 mL Thrombin.

R3: 2x5 mL Thrombin substrate.

R4: 4x25 mL Reaction buffer.

For the measurement of heparin anti-thrombin activity in research applications.

This assay, using a predilution of Antithrombin and Thrombin reagents in R4 buffer, is in compliance with the USP Anti-Factor IIa assay for unfractionated heparin.

Please Note: Results obtained should be for research purposes only and not used for patient diagnosis or treatment.

Streamline Laboratory Procedures

Ready-to-use reagents and buffers, from Medicago AB. Available in tablets and pouches.


Package Inserts MSDS Tech Specs Adaptations
BIOPHEN Heparin Anti-IIa - USP/EP BIOPHEN Heparin Anti-IIa BIOPHEN Heparin Anti-IIa Request Adaptations