Merck KGaA, Darmstadt, Germany Products & Reviews

Type IX-A, lyophilized powder, 1,000,000-5,000,000 units/g protein (30 min assay)

Type HP-2, aqueous solution, ≥100,000 units/mL

Type L-II, lyophilized powder, 1,000,000-3,000,000 units/g solid  

≥99% (agarose gel electrophoresis)

?2.0 units/mg protein (modified Warburg-Christian)

≥95%, bacterial

powder, BioReagent, suitable for cell culture, ≥97%

Solution stabilized, with 10,000 units penicillin and 10 mg streptomycin/mL, sterile-filtered, BioReagent, suitable for cell culture  

Recommended for use in cell culture applications at  0.5 to 1 mL per liter of medium.

protease

≥90% (HPLC)

50 mg/mL in H2O, sterile-filtered, BioReagent, suitable for cell culture

Diphtheria toxin may be used as a toxin element in the construction of immunotoxin for cell specific cytotoxicity. The translocation domain of bacterial toxins with natural endosome escape mechanism has been used in the development of efficient nonviral vectors for applications in gene therapy.

lyophilized powder, 1,500-3,000 units/mg protein (using benzylpenicillin)  

recombinant, expressed in rice, lyophilized powder, cell culture tested, low endotoxin, ≥96% (Excised bands analyzed by MS to yield total albumin content, PAGE)

45% in H2O, sterile-filtered, BioXtra, suitable for cell culture

solution, for use in Total Dietary Fiber Assay, TDF-100A

from Penicillium brefeldianum, ≥99% (HPLC and TLC)

powder, BioReagent, suitable for cell culture  

affinity isolated antibody, buffered aqueous solution  

BSA free, lyophilized powder, 50-250 units/mg protein (using chondroitin sulfate C as substrate)  

clone HA-7, purified from hybridoma cell culture  

Bornstein and Traub Type IV, powder, BioReagent, suitable for cell culture  

250 μg/mL in deionized water, 0.1 μm filtered, BioReagent, suitable for cell culture

from mouse Engelbreth-Holm-Swarm (EHS) sarcoma