Reagents, M

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  • Manganese(II) sulfate tetrahydrate, 99% (metals basis)

    Alfa Aesar

    Formula: MnO4S 4H2O Formula weight: 223.06 (151.00anhy) Purity: 99% (metals basis) CAS Number: 10101-68-5 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2833.29 Hazard Statements: H373 May cause damage to organs through prolonged or repeated…

  • Methyl blue

    Alfa Aesar

  • Maleic anhydride, 98+%

    Alfa Aesar

    Synonym(s): cis-Butenedioic anhydride, 2,5-Furandione Formula: C4H2O3 Formula weight: 98.06 Purity: 98+% CAS Number: 108-31-6 UN Number: UN2215 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2917.14 Hazard Statements: H334-H314-H302-H317 May cause allergy…

  • Malonic acid, 99%

    Alfa Aesar

    Synonym(s): Propanedioic acid Formula: C3H4O4 Formula weight: 104.06 Purity: 99% CAS Number: 141-82-2 Packing Group: III Harmonized Tariff Code:  2917.19 Hazard Statements: H301-H318-H315-H335 Toxic if swallowed. Causes serious eye damage. Causes skin irritation. May cause…

  • Morpholine, 99%

    Alfa Aesar

    Formula: C4H9NO Formula weight: 87.12 Purity: 99% CAS Number: 110-91-8 UN Number: UN2054 Hazard Class: 8 Packing Group: I Harmonized Tariff Code:  2934.99 Hazard Statements: H314-H226-H302-H312-H332 Causes severe skin burns and eye damage. Flammable liquid and vapour.…

  • 2-Mercaptoethanol, 98+%

    Alfa Aesar

    Synonym(s): Thioethylene glycol, Thioglycol Formula: HSCH2CH2OH Formula weight: 78.13 Purity: 98+% CAS Number: 60-24-2 UN Number: UN2966 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2930.90 Hazard Statements: H301-H310-H318-H227-H315-H317-H335 Toxic if…

  • 9-Methylanthracene, 99%

    Alfa Aesar

    Formula: C15H12 Formula weight: 192.26 Purity: 99% CAS Number: 779-02-2 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2902.90 Hazard Statements: H318 Causes serious eye damage. Precautionary Statements: P280 Wear protective…

  • 4-Methoxybenzaldehyde, 98%

    Alfa Aesar

    Synonym(s): p-Anisaldehyde Formula: C8H8O2 Formula weight: 136.15 Purity: 98% CAS Number: 123-11-5 Harmonized Tariff Code:  2912.49 Hazard Statements: H302 Harmful if swallowed. Precautionary Statements: P280f Wear protective clothing. Risk Phrases: 22 Harmful if…

  • (R)-2-Methyl-CBS-oxazaborolidine monohydrate, 94%

    Alfa Aesar

    Synonym(s): (R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole Formula: C18H20BNO H2O Formula weight: 295.19 (277.17anhy) Purity: 94% CAS Number: 112022-83-0 Harmonized Tariff Code:  2934.99

  • Meat Peptone

    Alfa Aesar

    Synonym(s): Peptones, meat CAS Number: 73049-73-7 Harmonized Tariff Code:  3504.00

  • Mesitylene-2-sulfonyl chloride, 99%

    Alfa Aesar

    Synonym(s): 2,4,6-Trimethylbenzenesulfonyl chloride Formula: C9H11ClO2S Formula weight: 218.70 Purity: 99% CAS Number: 773-64-8 UN Number: UN3261 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2904.90 Hazard Statements: H314-H318 Causes severe skin burns and…

  • Multi-Element QC-19 Check Standard Solution, Specpure r

    Alfa Aesar

    Formula: Matrix 5 HNO3/tr. F -/tr. tartaric acid UN Number: UN3264 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  3822.00 Hazard Statements: H301-H311-H314-H318-H332 Toxic if swallowed. Toxic in contact with skin. Causes severe skin burns and eye damage. Causes…

  • Manganese powder, APS <10 micron, 99.6% (metals basis)

    Alfa Aesar

    Purity: 99.6% (metals basis) CAS Number: 7439-96-5 UN Number: UN3089 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:

  • Methylmercury(II) iodide, 98+%

    Alfa Aesar

    Formula: CH3HgI Formula weight: 342.56 Purity: 98+% CAS Number: 143-36-2 UN Number: UN2025 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2852.10 Hazard Statements: H300-H310-H330-H373 Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. May cause…

  • Mercaptosuccinic acid, 98%

    Alfa Aesar

    Synonym(s): Thiomalic acid Formula: C4H6O4S Formula weight: 150.15 Purity: 98% CAS Number: 70-49-5 Packing Group: III Harmonized Tariff Code:  2930.90 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause…

  • 12-Molybdophosphoric acid hydrate, ACS

    Alfa Aesar

    Synonym(s): Phosphomolybdic acid Formula: H3PO4 12MoO3 xH2O Formula weight: 1825.25(anhy) CAS Number: 51429-74-4 UN Number: UN3085 Hazard Class: 5.1 Packing Group: III Harmonized Tariff Code:  2811.19 Hazard Statements: H272-H314-H318 May intensify fire; oxidizer. Causes…

  • Mercury(II) chloride, ACS, 99.5% min

    Alfa Aesar

    Formula: Cl2Hg Formula weight: 271.50 Purity: 99.5% min CAS Number: 7487-94-7 UN Number: UN1624 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2852.10 Hazard Statements: H300-H372-H341-H361-H314-H318 Fatal if swallowed. Causes damage to organs through…

  • Mercury, Oil based standard solution, Specpure r, Hg 1000µg/g

    Alfa Aesar

    Harmonized Tariff Code:  2852.10 Hazard Statements: H301-H311-H373-H332 Toxic if swallowed. Toxic in contact with skin. May cause damage to organs through prolonged or repeated exposure. Harmful if inhaled. Precautionary Statements: P260-P261-P301+P310-P361-P405-P501a Do not breathe…

  • Magnesium citrate, dibasic hydrate

    Alfa Aesar

    Formula: C6H6MgO7 xH2O Formula weight: 214.14(anhy) CAS Number: 119851-23-9 Harmonized Tariff Code:  2918.15

  • Methyl cellulose, viscosity 4000 cPs

    Alfa Aesar

    CAS Number: 9004-67-5 Harmonized Tariff Code:  3912.39

  • Malachite Green oxalate

    Alfa Aesar

    Synonym(s): C.I. 42000 Formula: C52H54N4O12 Formula weight: 927.02 CAS Number: 2437-29-8 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2921.59 Hazard Statements: H302-H312 Harmful if swallowed. Harmful in contact with skin. Precautionary…

  • Mercury(II) iodide, ACS, 99.0% min (Assay-dried basis)

    Alfa Aesar

    Synonym(s): Mercury iodide, red, Mercury diiodide Formula: HgI2 Formula weight: 454.40 Purity: 99.0% min (Assay-dried basis) CAS Number: 7774-29-0 UN Number: UN1638 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2852.10 Hazard Statements: …

  • Methyl 3-aminothiophene-2-carboxylate, 98+%

    Alfa Aesar

    Synonym(s): 3-Aminothiophene-2-carboxylic acid methyl ester Formula: C6H7NO2S Formula weight: 157.19 Purity: 98+% CAS Number: 22288-78-4 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Methanesulfonic acid, 70% aq. soln.

    Alfa Aesar

    Formula: CH3SO3H Formula weight: 96.10 CAS Number: 75-75-2 UN Number: UN2586 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2904.10 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: …

  • MES hydrate, 99+%

    Alfa Aesar

    Synonym(s): 2-(4-Morpholinyl)ethanesulfonic acid hydrate, 4-Morpholineethanesulfonic acid hydrate Formula: C6H13NO4S xH2O Formula weight: 195.24(anhy) Purity: 99+%

  • Malononitrile, 99%

    Alfa Aesar

    Synonym(s): Dicyanomethane, Propanedinitrile Formula: C3H2N2 Formula weight: 66.06 Purity: 99% CAS Number: 109-77-3 UN Number: UN2647 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2926.90 Hazard Statements: H301-H311-H331 Toxic if swallowed. Toxic in…

  • MOPS, 0.5M buffer soln., pH 8.5

    Alfa Aesar

    CAS Number: 1132-61-2 Harmonized Tariff Code:  2934.99

  • Manganese(II) iodide, ultra dry, 99.99% (metals basis)

    Alfa Aesar

    Formula: I2Mn Formula weight: 308.75 Purity: 99.99% (metals basis) CAS Number: 7790-33-2 Harmonized Tariff Code:  2827.60 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a Wash thoroughly after handling. Do not eat, drink…

  • 2-Methylfuran, 98+%, stab.

    Alfa Aesar

    Synonym(s): Silvan Formula: C5H6O Formula weight: 82.10 Purity: 98+%, stab. CAS Number: 534-22-5 UN Number: UN2301 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2932.19 Hazard Statements: H225-H300-H330-H341-H319 Highly flammable liquid and vapour. Fatal if…

  • 3-Methoxybenzaldehyde, 98%

    Alfa Aesar

    Synonym(s): m-Anisaldehyde Formula: C8H8O2 Formula weight: 136.15 Purity: 98% CAS Number: 591-31-1 Harmonized Tariff Code:  2912.49 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: P280g-P305+P351+P338 Wear…

  • 4-Methoxybenzyl alcohol, 98%

    Alfa Aesar

    Synonym(s): p-Anisyl alcohol, 4-Methoxyphenylmethanol Formula: C8H10O2 Formula weight: 138.17 Purity: 98% CAS Number: 105-13-5 Harmonized Tariff Code:  2909.49 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May…

  • 4-Methoxyphenyl isothiocyanate, 98%

    Alfa Aesar

    Synonym(s): p-Anisyl isothiocyanate Formula: C8H7NOS Formula weight: 165.22 Purity: 98% CAS Number: 2284-20-0 UN Number: UN2922 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2930.90 Hazard Statements: H331-H314-H318-H302-H312 Toxic if inhaled. Causes…

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