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Storage at 4°C. CAS Number: [69-52-3] Derivative of Penicillin. Inhibits cell-wall synthesis in Gram-negative and Gram-positive bacteria. Used to select drug resistant plasmid bearing bacteria. C 16 H 18 N 3 NaO 4 S MW: 371.39 Potency: > 900 μg/mg pH (1%, H 2 O): 8 - 10 Dimethylaniline: < 0.002% Solubility (water, 50 mg/ml): clear/colorless Working concentrations: 20 - 50 μg/ml for E.coli Stability and storage: Lyophilized >2 years. Stock solutions: store at -20 °C Assay: 91 - 102% Moisture (LOD

CAS number: [22862-76-6] From Streptomyces griseolus. Antibiotic that inhibits protein synthesis 4°C C 14 H 19 NO 4 MW: 265.3 Purity: min. 98% Solubility: DMSO, ethanol, water Working concentrations: 50ng/ml to 50ug/ml

General serine and cysteine protease inhibitor. Inhibits trypsin, papain, cathepsin A. CAS number: [37682-72-7] - 20°C C 27 H 44 N 10 O 6 .2HCl MW: 677.63 Solubility: Water: 50mg/ml DMSO: soluble Methanol: soluble Working concentration: 10-50 μg/ml Typical stock solutions can be prepared in water, DMSO, or methanol at concentrations of 10mg/ml.

CAS number: [9087-70-1] 4°C Activity: 5400 - 7125 KIU/mg Purity (Gel filtration): > 95% Solubility: 10mg/ml water Ash: < 0.1% Endotoxin: < 10 EU/mg (LAL assay) Water: max. 5% Identification: positive Appearance: white to off white powder

(Immunomycin) Antimalar agent with immunosuppressive properties. 4 °C CAS number: [11011-38-4] C 43 H 69 NO 12 MW: 792.01 Purity: min. 99% Solubility: DMSO at 65 mg/ml, soluble in ethanol Poorly soluble in water.

CAS number: [1405-69-2] - 20°C Activity: min. 11units / mg protein Protein: min. 90% Ash: max. 2.5% Loss on drying: max. 7.5% One unit will bind 1.0ug of D-Biotin Affinity purified

CAS number: [531-53-3] C 14 H 14 SN 3 Cl MW: 291.8 Dye content: approx. 80%

CAS number: [531-55-5] C 15 H 16 SN 3 Cl MW: 305.88 Dye content: approx. 75%

Numer CAS: [1405-87-4] 4°C Potencja: min 70 000 jednostek/gm pH: 5,5 - 7,5 Strata przy suszeniu: < 5,0%

-20°C CAS number: [88899-55-2] C 35 H 58 O 9 MW: 622.83 Purity (HPLC): min. 95% Melting point: 151.5 - 152°C Appearance: white powder or colorless film Solubility: DMSO (200mg/ml)

CAS number: [632-99-5] Certified Grade, Biologically tested C 20 H 19 N 3 HCl MW: 337.85 Dye content: min 80% Solubility: water, 2 mg/ml

CAS number: [102185-33-1] (5-Bromo-4-chloro-3-indolyl phosphate, disodium salt) - 20°C Used as a substrate for alkaline phosphatase. C 8 H 4 BrCINO 4 PNa 2 MW: 370.43 Solubility (water): 20 mg/ml Purity (HPLC): min. 98% Appearance: white, slight blue cast powder

(5-Bromo-4-chloro-3-indolyl phosphate, toluidine salt) Used as asubstrate for alkaline phosphatase. - 20°C C 8 H 4 BrCINO 4 P.C 7 H 9 N MW: 433.6 Purity: 97.0% Solubility (water): insoluble Dimethylformamide: 20 mg/ml 1mg/ml in 0.1 M phosphate buffer gives a haze free solution.

pH (10% water): 4.6 - 6.0

CAS number: [1670-14-0] 4°C C 7 H 8 N 2 .HCl.H 2 O MW: 156.61 (Anh) Purity: min. 98% Solubility (1% water): clear / haze free Water content: max. 12%

CAS number: [65-85-0] C 6 H 5 COOH MW: 122.12 Purity: > 99.5% Insolubles (methanol): < 0.005% Heavy metals (as Pb): < 0.0005%

CAS number: [10191-18-1] [N,N-Bis(2-Hydroxyethyl)-2-Amino ethanesulfonic Acid] Useful pH: 6.4 - 7.8 pKa (20 °C): 7.1 ± 0.1 C 6 H 15 NO 5 S MW: 213.25 Purity: ≥ 99.0% pH (10%, H 2 O): 3.5 - 5.0 Solubility (10% water): clear / colorless

CAS number: [66992-27-6] [N,N-Bis(2-Hydroxyethyl)-2-Amino ethanesulfonic Acid, Sodium salt] C 6 H 14 NO 5 S . Na MW: 235.2 Useful pH: 6.4 - 7.8

Microbial product. Inhibitor for Aminopeptidase B and Leucine aminopeptidase. - 20°C CAS number: [58970-76-6] C 16 H 24 N 2 O 4 MW: 308.38 Purity: > 98% Solubility: DMSO

Ultra Pure Grade CAS number: [590-46-5] C 5 H 11 NO 2 .HCl MW: 153.61 Purity: min. 98% Residue after ignition: max. 0.1% Water: max. 0.5% Heavy metals: max. 10ppm