GELATIN, Bovine Skin GEL771 CAS number: [9000-70-8] Type A, 225 Bloom

L-ASPARAGINE, Monohydrate CAS number: [5794-13-8] (Non-Animal Source) C 4 H 8 N 2 O 3 . H 2 O MW: 150.13 Purity: min. 99.0% Specific rotation: + 33 to + 36.5 Heavy metals: < 0.002% Chloride: < 0.003% Sulfate: < 0.003%

Molecular Weight244.20 Molecular Formula C 9 H 12 N 2 O 6 StorageRT Numer CAS 58-96-8 Purity:min. 99.5%

N-ETHYLMALEIMIDE CAS number: [128-53-0] (NEM, 1-Ethyl-3-pyrrolin-2,5-dione) 4 °C Reacts specifically with sulfhydryl groups. Modifies cysteine residues in proteins and can be used to quantitate this amino acid. NEM is inactivated by reducing agents such as DTT, DTE and mercaptoethanol. C 6 H 7 NO 2 MW: 125.1 Solubility: water: 1 g/l ethanol: soluble

POTASSIUM PHOSPHATE MONOBASIC PPM666 Anhydrous, Biotechnology Grade CAS number: [7778-77-0] KH2PO4 MW: 136.1 Purity: ≥ 99.5% Insolubles: < 0.05% Solubility (1M): clear/colorless DNase, RNase, Protease: none detected

L-ASPARTIC ACID, Free Acid ASP003 CAS number: [56-84-8] C4H7NO4 MW: 133.11 Purity: min. 98% Heavy metals: 0.001%

L-GLUTAMINE GLU102 Suitable for Tissue Culture CAS number: [56-85-9] C5H10N2O3 MW: 146.14 Purity: ≥ 99.0% Solubility: clear/haze free (25 mg/ml) Heavy Metals (as Pb): < 0.001%

Molecular Weight244.20 Molecular Formula C 9 H 12 N 2 O 6 StorageRT Numer CAS 58-96-8 Purity:min. 99.5%

D(+)-GALACTOSE CAS number: [59-23-4] C 6 H 12 O 6 MW 180.16 Purity: min. 98% Appearance: white to off-white Solubility(1M): clear/yellow solution

L-ASPARTIC ACID, Free Acid CAS number: [56-84-8] C 4 H 7 NO 4 MW: 133.11 Purity: min. 98% Heavy metals: 0.001%

BICINE, Biotechnology Grade (N,N-Bis(2-Hydroxyethyl)glycine) CAS number: [150-25-4] Useful pH: 7.6-9.0 pKa: 8.3 C6H13NO4 MW: 163.2 Purity: > 99% Solubility (1 M water): clear/colorless

L- LYSINE, Monohydrochloride CAS number: [657-27-2] C 6 H 14 N 2 O 2 . HCl MW: 182.65 Purity: min. 99%

L-CYSTINE, Free Base CYS400 CAS number: [56-89-3] C6H12N2O4S2 MW: 240.3 Purity: ≥ 98.0% Heavy Metals: < 0.002%

MAGNESIUM ACETATE, Tetrahydrate, ACS Grade CAS number: [16674-78-5] C 6 H 6 O 4 Mg . 4H 2 O MW: 214.5 Purity: > 99% Insolubles: < 0.005% Sulfate: < 0.005% Heavy Metals: < 0.001%

GUANOSINE, Ultra Pure CAS number: [118-00-3] C 10 H 13 N 5 O 5 MW: 283.24 Purity: ≥ 98%

L-SERINE CAS number: [56-45-1] C 3 H 7 NO 3 MW: 105.1 Purity: > 99%

BROMOTHYMOL BLUE, Sodium Salt BRO555 CAS number: [34722-90-2] C27H27Br2NaO5S MW: 646.37

AMMONIUM PHOSPHATE MONOBASIC, ACS, Reagent Grade APM002 CAS number: [7722-76-1] NH4H2PO4 MW: 115.03 Assay (NH3): min. 98.0% pH 5% solution: 3.8-4.4 Insoluble matter: < 0.005% Ammonium hydroxide Precipitate: <0.005% Chloride (Cl): < 5.0ppm Nitrate (NO3): <0.001% Sulfur cpds. (SO4): < 0.005% Heavy metals (as Pb): < 5ppm Iron (Fe): < 0.001% Potassium (K): < 0.005% Sodium (Na): < 0.005%

PIPES, Sodium Salt (1.5), Biotechnology Grade CAS number: [100037-69-2] C 8 H 18 N 2 O 6 S 2 MW: 670.7 Purity: > 99% pKa (20 °C): 6.80 Useful pH range: 6.1-7.5

POTASSIUM BICARBONATE PBC401 ACS, Reagent Grade CAS number: [298-14-6] KHCO3 MW: 100.12 Purity: 99.7 - 100.5%