Letheen Broth

Letheen Broth is a liquid medium used to determine the antimicrobial activity of quaternary ammonium compounds. It is also used for determining the phenol coefficient of cationic surface-active materials.

AOAC Conforms to AOAC International testing standards.

Principles of Letheen Broth Letheen Broth contains peptone and beef extract which provide the carbon and nitrogen sources necessary for growth. Lecithin and polysorbate 80 are added as surface active disinfectant neutralizing agents.2,5,6 Sodium chloride is included to maintain osmotic balance.

Principles of Letheen Broth, Modified Lecithin, Tween80, and Sodium Bisulfite neutralize quaternary ammonium compounds, phenols, and formalin present in cosmetic products. Meat Peptone, Beef Extract, Yeast Extract, and Enzymatic Digest of Casein provide nitrogenous compounds, carbohydrates, vitamins and minerals. Sodium Chloride maintains osmotic equilibrium.

Description/Item No. Brand Mfr. Item No. Qty. Your Cost/Qty Purchase
Letheen Broth
3116-41
Alpha Biosciences L12-109 500 gram
$101.04
$51.50/EA
49% discount
Sign in to Buy This item is not currently stocked. Allow 1-2 weeks. Please call us at 800-328-8378 if you’d like us to keep stock in the future In Stock
Letheen Broth
3116-42
Alpha Biosciences L12-109 2 kg
$371.84
$154.01/EA
59% discount
Sign in to Buy This item is not currently stocked. Allow 1-2 weeks. Please call us at 800-328-8378 if you’d like us to keep stock in the future In Stock
Letheen Broth
3094-60
Difco 268110 500 gram
$165.76
$144.42/EA
13% discount
Sign in to Buy 3 In Stock 3 In Stock
Letheen Broth
3112-10
Criterion C6021 500 gram
$89.97
$56.34/EA
37% discount
Sign in to Buy 6 In Stock 6 In Stock