Reagents, P

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  • Pepsin, porcine stomach

    Alfa Aesar

    Synonym(s): EC 3.4.23.1, Pepsin A CAS Number: 9001-75-6 Harmonized Tariff Code:  3507.90 Hazard Statements: H334-H335-H315-H319 May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause respiratory irritation. Causes skin irritation. Causes serious eye…

  • Potassium dichromate, 99%

    Alfa Aesar

    Synonym(s): Potassium bichromate Formula: Cr2K2O7 Formula weight: 294.18 Purity: 99% CAS Number: 7778-50-9 UN Number: UN3087 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2841.50 Hazard Statements: H272-H301-H330-H334-H340-H350-H360-H372-H314-H312-H317 …

  • Polyvinylpyrrolidone, M.W. 40,000

    Alfa Aesar

    Synonym(s): PVP, Povidone Formula: (C6H9NO) n CAS Number: 9003-39-8 Harmonized Tariff Code:  3905.99

  • Potassium iodide, 99%

    Alfa Aesar

    Formula: KI Formula weight: 166.01 Purity: 99% CAS Number: 7681-11-0 Harmonized Tariff Code:  2827.60

  • Polyethylene powder, low density, 500 micron

    Alfa Aesar

    Synonym(s): LDPE Formula: (CH2CH2) n CAS Number: 9002-88-4 Harmonized Tariff Code:  3901.10

  • Polyvinylpyrrolidone, M.W. 10,000

    Alfa Aesar

    Synonym(s): PVP K15, Povidone Formula: (C6H9NO) n CAS Number: 9003-39-8 Harmonized Tariff Code:  3905.99

  • Potassium dichromate, ACS, 99.0% min

    Alfa Aesar

    Synonym(s): Potassium bichromate Formula: Cr2K2O7 Formula weight: 294.18 Purity: 99.0% min CAS Number: 7778-50-9 UN Number: UN3087 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2841.50 Hazard Statements: …

  • Potassium cyanide, 97+%

    Alfa Aesar

    Formula: CKN Formula weight: 65.12 Purity: 97+% CAS Number: 151-50-8 UN Number: UN1680 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2837.19 Hazard Statements: H300-H310-H330 Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. Precautionary…

  • 2-Propanol, anhydrous, 99.5+%

    Alfa Aesar

    Formula: (CH3)2CHOH Formula weight: 60.10 Purity: 99.5+% CAS Number: 67-63-0 UN Number: UN1219 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2905.12 Hazard Statements: H225-H319-H336 Highly flammable liquid and vapour. Causes serious eye irritation. May cause…

  • Polyvinyl alcohol, 98-99% hydrolyzed, medium molecular weight

    Alfa Aesar

    Formula: [-CH2CH(OH)-] n Purity: 98-99% hydrolyzed, medium molecular weight CAS Number: 9002-89-5 Harmonized Tariff Code:  3905.30

  • Potassium Dihydrogen Citrate Hydrate 99% (Dry Basis)

    Alfa Aesar

    Synonym(s): Potassium citrate monobasic Formula: HOOCCH2C(OH)(COOH)CH2COOK xH2O Formula weight: 230.22(anhy) Purity: 99% (dry basis) CAS Number: 866-83-1 Harmonized Tariff Code:  2918.15

  • Potassium permanganate, 0.1N Standardized Solution

    Alfa Aesar

    Formula: KMnO4 Formula weight: 158.03 CAS Number: 7722-64-7 Harmonized Tariff Code:  2841.61

  • Phosphate-buffered saline (PBS, 1X), sterile

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Potassium carbonate, anhydrous, 99%

    Alfa Aesar

    Formula: CK2O3 Formula weight: 138.21 Purity: 99% CAS Number: 584-08-7 Harmonized Tariff Code:  2836.40 Hazard Statements: H302-H319 Harmful if swallowed. Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P301+P312-P337+P313-P501a Wear protective…

  • Polyethylene glycol 400

    Alfa Aesar

    Synonym(s): PEG 400 Formula: H(OCH2CH2) nOH CAS Number: 25322-68-3 Harmonized Tariff Code:  3907.20

  • Polyethylene glycol 600

    Alfa Aesar

    Synonym(s): PEG 600 Formula: H(OCH2CH2) nOH CAS Number: 25322-68-3 Harmonized Tariff Code:  3907.20

  • Polyvinyl alcohol, 98-99% hydrolyzed, low molecular weight

    Alfa Aesar

    Formula: [-CH2CH(OH)-] n Purity: 98-99% hydrolyzed, low molecular weight CAS Number: 9002-89-5 Harmonized Tariff Code:  3905.30

  • Polyvinylpyrrolidone, M.W. 8,000

    Alfa Aesar

    Synonym(s): PVP Formula: (C6H9NO) n CAS Number: 9003-39-8 Harmonized Tariff Code:  3905.99

  • Potassium hydroxide, 0.5N Standardized Solution

    Alfa Aesar

    Formula: KOH Formula weight: 56.11 CAS Number: 1310-58-3 UN Number: UN1814 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2815.20 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: …

  • Paraformaldehyde, 16% w/v aq. soln., methanol free

    Alfa Aesar

    CAS Number: 30525-89-4 MDL: MFCD00133991 Formula: (CH2O)n Form: Liquid, Ampouled under argon GHS Hazard and Precautionary Statements Hazard Statements: H351-H315-H319-H317-H303 Suspected of causing cancer. Causes skin irritation. Causes…

  • Poly(3-hexylthiophene-2,5-diyl), regiorandom

    Alfa Aesar

    CAS Number: 104934-50-1 Harmonized Tariff Code:  3911.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

  • Potassium orthovanadate, 99.9% (metals basis)

    Alfa Aesar

    Synonym(s): Potassium vanadate (ortho) Formula: K3VO4 Formula weight: 232.24 Purity: 99.9% (metals basis) CAS Number: 14293-78-8 UN Number: UN3285 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2841.90 Hazard Statements: H331-H315-H319-H335 Toxic if…

  • Potassium hydroxide, 1.0N Standardized Solution

    Alfa Aesar

    Formula: KOH Formula weight: 56.11 CAS Number: 1310-58-3 UN Number: UN1814 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2815.20 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: …

  • Potassium bromate, 99%

    Alfa Aesar

    Formula: KBrO3 Formula weight: 167.00 Purity: 99% CAS Number: 7758-01-2 UN Number: UN1484 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2829.90 Hazard Statements: H271-H301 May cause fire or explosion; strong oxidizer. Toxic if swallowed. Precautionary…

  • Potassium hexacyanoferrate(III), 98+%

    Alfa Aesar

    Synonym(s): Potassium ferricyanide Formula: C6FeK3N6 Formula weight: 329.26 Purity: 98+% CAS Number: 13746-66-2 Harmonized Tariff Code:  2837.20 Risk Phrases: 32 Contact with acids liberates very toxic gas. Safety Phrases: 60 This material and/or its container must be…

  • Platinum wire, 0.0508mm (0.002in) dia, stress relieved, 99.99%(metals basis)

    Alfa Aesar

    Purity: 99.99%(metals basis) CAS Number: 7440-06-4 Harmonized Tariff Code:  7110.19

  • 2,4-Pentanedione, 99%

    Alfa Aesar

    Synonym(s): Acetylacetone, acac Formula: C5H8O2 Formula weight: 100.12 Purity: 99% CAS Number: 123-54-6 UN Number: UN2310 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2914.19 Hazard Statements: H226-H302 Flammable liquid and vapour. Harmful if swallowed. …

  • Phenylselenenyl bromide, 98%

    Alfa Aesar

    Synonym(s): Benzeneselenenyl bromide Formula: C6H5BrSe Formula weight: 235.98 Purity: 98% CAS Number: 34837-55-3 UN Number: UN2928 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2931.90 Hazard Statements: H301-H331-H373 Toxic if swallowed. Toxic if…

  • Potassium chloride, 3M aq. soln.

    Alfa Aesar

    Formula: KCl Formula weight: 74.55 CAS Number: 7447-40-7 Harmonized Tariff Code:  2827.39

  • Phosphate buffered RIPA with glycerol (2X)

    Alfa Aesar

    Harmonized Tariff Code:  3822.00 Hazard Statements: H319 Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P337+P313 Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with…

  • Polydimethylsiloxane (silicone) emulsion

    Alfa Aesar

    Harmonized Tariff Code:  3910.00

  • Polyvinyl alcohol, 98-99% hydrolyzed, high molecular weight

    Alfa Aesar

    Formula: [-CH2CH(OH)-] n Purity: 98-99% hydrolyzed, high molecular weight CAS Number: 9002-89-5 Harmonized Tariff Code:  3905.30

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