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PYROGENT™ Gel Clot LAL Assay (without endotoxin)

Catalog #: N183-06
Gel Clot LAL Assay for endotoxin testing with sensitivity of 0.06 EU/ml, 80 tests. Kit does not include endotoxin.

Product Overview

Gel Clot LAL (PYROGENTTM) provides a simple positive/negative result and is most often mentioned in pharmacopeial monographs as the official referee test. Lonza’s PYROGENTTM Gel Clot LAL Assay is a qualitative LAL test for Gram-negative bacterial endotoxin. The gel clot assay is run in tubes that are placed in a water bath or dry heat block at 37°C. After a one-hour incubation period, the tubes are flipped 180°. A firm clot that stays in the bottom of the tube indicates a positive reaction. If liquid flows down the side of the tube, the result is negative for endotoxin. PYROGENTTM Gel Clot LAL Assay requires depyrogenated 10 x 75 mm glass reaction tubes to run the assay.

January 2022 Update:
As of 01 June 2022, we will no longer be taking orders for N183-06.  Customers wanting to continue to test with the gel clot method using these specific reagents should purchase N283-06.  This is our PYROGENTTM Plus Gel Clot LAL Assay kit, 64 tests. Each kit contains 4 x 16 tests/vial of lysate and 1 vial of endotoxin. 



Sensitivity of 0.06 EU/ml Easy-to-read qualitative results


Simple LAL test not requiring sophisticated instrumentation and software

Content & Storage


5 x 16 tests/vial lysate


Safety Data Sheets (SDS)

Certificate of Analysis (CoA)

Please enter Lot Number, including all zeros, located on the product label and please take into account that it is case sensitive.

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