Reagents, M

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  • Magnesium fluoride, Puratronic r, 99.99% (metals basis)

    Alfa Aesar

    Formula: F2Mg Formula weight: 62.30 Purity: 99.99% (metals basis) CAS Number: 7783-40-6 Harmonized Tariff Code:  2826.19 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • (Methoxycarbonylmethyl)triphenylphosphonium chloride, 97%

    Alfa Aesar

    Synonym(s): (Carbomethoxymethyl)triphenylphosphonium chloride, Methyl (triphenylphosphonio)acetate chloride Formula: CH3O2CCH2P(C6H5)3Cl Formula weight: 370.82 Purity: 97% CAS Number: 2181-97-7 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin…

  • 2-Methoxy-5-(trifluoromethoxy)phenylacetic acid, 97%

    Alfa Aesar

    Formula: C10H9F3O4 Formula weight: 250.17 Purity: 97% Harmonized Tariff Code:  2918.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a …

  • Magnesium perchlorate hexahydrate, 99% (metals basis)

    Alfa Aesar

    Formula: Mg(ClO4)2 6H2O Formula weight: 331.33 (223.23anhy) Purity: 99% (metals basis) CAS Number: 13446-19-0 UN Number: UN1475 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2829.90 Hazard Statements: H272-H315-H319-H335 May intensify fire; oxidizer. Causes…

  • MES, 1.0M buffer soln., pH 8.0

    Alfa Aesar

    CAS Number: 145224-94-8 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • (S)-(+)-2-Methylpiperazine, 98+%

    Alfa Aesar

    Formula: C5H12N2 Formula weight: 100.17 Purity: 98+% CAS Number: 74879-18-8 UN Number: UN2925 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  2933.59 Hazard Statements: H314-H318-H228 Causes severe skin burns and eye damage. Causes serious eye damage.…

  • 4-Methoxyindole, 99%

    Alfa Aesar

    Formula: C9H9NO Formula weight: 147.18 Purity: 99% CAS Number: 4837-90-5 Harmonized Tariff Code:  2933.99

  • Methylhydrazine sulfate, 98%

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Formula: CH3NHNH2 H2SO4 Formula weight: 144.15 Purity: 98% CAS Number: 302-15-8 UN Number:…

  • 2-(4-Methylphenyl)ethanol, 99%

    Alfa Aesar

    Synonym(s): 4-Methylphenethyl alcohol, 2-(p-Tolyl)ethanol Formula: C9H12O Formula weight: 136.20 Purity: 99% CAS Number: 699-02-5 Harmonized Tariff Code:  2906.29

  • Montmorillonite K10

    Alfa Aesar

    CAS Number: 1318-93-0 Harmonized Tariff Code:  2508.40

  • Methyl 2-chloro-4-iodonicotinate, 97%

    Alfa Aesar

    Synonym(s): 2-Chloro-4-iodonicotinic acid methyl ester, Methyl 2-chloro-4-iodopyridine-3-carboxylate Formula: C7H5ClINO2 Formula weight: 297.48 Purity: 97%

  • Methyllithium, 1-2M in ether, packaged under Argon in resealable ChemSeal^t…

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Formula: C14H7N5O Formula weight: 261.24 Purity: 97% UN Number: UN3439 Hazard Class: 6.1 …

  • Manganese, AAS standard solution, Specpure r, Mn 1000µg/ml

    Alfa Aesar

    Formula: Mn in 5 HNO3 UN Number: UN3264 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  3822.00 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a Do not breathe…

  • Methyl 3-methylaminocrotonate, 97%

    Alfa Aesar

    Synonym(s): Methyl 3-methylaminobut-2-enoate Formula: CH3C(NHCH3)=CHCO2CH3 Formula weight: 129.16 Purity: 97% CAS Number: 13412-12-9 Harmonized Tariff Code:  2922.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • Methyl dichloroacetate, 99%

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonym(s): Dichloroacetic acid methyl ester Formula: C3H4Cl2O2 Formula weight: 142.97 …

  • 2-Methoxyethyl acrylate, 98%, stab. with ca 50-100ppm 4-methoxyphenol

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonym(s): Acrylic acid 2-methoxyethyl ester, Ethylene glycol methyl ether acrylate Formula: …

  • Mercury, Electronic Grade, 99.9998% (metals basis)

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Purity: 99.9998% (metals basis) CAS Number: 7439-97-6 UN Number: UN2809 Hazard Class: 8 …

  • 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:

  • 2-(Methylthio)thiophene, 97%

    Alfa Aesar

    Synonym(s): 2-(Methylmercapto)thiophene, Methyl 2-thienyl sulfide Formula: C5H6S2 Formula weight: 130.23 Purity: 97% CAS Number: 5780-36-9 UN Number: UN3334 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2934.99 Hazard Statements: H319-H335 Causes serious…

  • 1-Methyl-2-pyrrolidinone, anhydrous, 99.5%, packaged under Argon in resealable…

    Alfa Aesar

    Formula: C5H9NO Formula weight: 99.13 Purity: 99.5%, packaged under Argon in resealable ChemSeal^t bottles CAS Number: 872-50-4 Harmonized Tariff Code:  2933.79 Hazard Statements: H360-H315-H319-H335-H227 May damage fertility or the unborn child. Causes skin irritation. Causes…

  • Methyl 3-thiopheneacetate, 98%

    Alfa Aesar

    Synonym(s): Methyl 3-thienylacetate, Thiophene-3-acetic acid methyl ester Formula: C7H8O2S Formula weight: 156.20 Purity: 98% CAS Number: 58414-52-1 Harmonized Tariff Code:  2934.99 Safety Phrases: 24/25 Avoid contact with skin and eyes.

  • Methyl difluoroacetate, 99%

    Alfa Aesar

    Synonym(s): Difluoroacetic acid methyl ester Formula: F2CHCO2CH3 Formula weight: 110.06 Purity: 99% CAS Number: 433-53-4 UN Number: UN2924 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2915.90 Hazard Statements: H225-H314-H318 Highly flammable liquid and…

  • Manganese(III) oxide, 98%

    Alfa Aesar

    Synonym(s): Manganese sesquioxide Formula: Mn2O3 Formula weight: 157.86 Purity: 98% CAS Number: 1317-34-6 Harmonized Tariff Code:  2820.90 Hazard Statements: H301-H311-H332-H315-H319-H335 Toxic if swallowed. Toxic in contact with skin. Harmful if inhaled. Causes skin irritation.…

  • Methyl 2,4-difluorobenzoate, 98%

    Alfa Aesar

    Synonym(s): 2,4-Difluorobenzoic acid methyl ester Formula: C8H6F2O2 Formula weight: 172.13 Purity: 98% CAS Number: 106614-28-2 Harmonized Tariff Code:  2916.39

  • Methanol, Biograde, 99.8+%

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Formula: C17H9F3N2S Formula weight: 330.33 Purity: 97% UN Number: UN3439 Hazard Class: …

  • Methyl isovalerate, 98%

    Alfa Aesar

    Synonym(s): Isovaleric acid methyl ester, 3-Methylbutyric acid methyl ester Formula: (CH3)2CHCH2CO2CH3 Formula weight: 116.17 Purity: 98% CAS Number: 556-24-1 UN Number: UN2400 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2915.60 Hazard Statements: …

  • MOPS, 1.0M buffer soln., pH 5.5

    Alfa Aesar

    CAS Number: 1132-61-2 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • 2-(4-Methyl-5-thiazolyl)ethyl acetate, 98+%

    Alfa Aesar

    Synonym(s): 5-(2-Acetoxyethyl)-4-methylthiazole, Sulfurol acetate Formula: C8H11NO2S Formula weight: 185.24 Purity: 98+% CAS Number: 656-53-1 Harmonized Tariff Code:  2934.10 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • 4-Methoxybiphenyl, 98+%

    Alfa Aesar

    Synonym(s): 4-Phenylanisole Formula: C13H12O Formula weight: 184.24 Purity: 98+% CAS Number: 613-37-6 Harmonized Tariff Code:  2909.30

  • 4-Methoxyphenylurea, 98+%

    Alfa Aesar

    Formula: C8H10N2O2 Formula weight: 166.18 Purity: 98+% CAS Number: 1566-42-3 Harmonized Tariff Code:  2924.21

  • Methyl 4-(methylthio)butyrate, 96%

    Alfa Aesar

    Synonym(s): 4-(Methylthio)butyric acid methyl ester Formula: CH3S(CH2)3CO2CH3 Formula weight: 148.23 Purity: 96% CAS Number: 53053-51-3 Harmonized Tariff Code:  2930.90 Hazard Statements: H227 Combustible liquid. Precautionary Statements: P210-P280-P370+P378a-P403+P235-P501a …

  • N-Methylmaleimide, 98+%

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonym(s): 1-Methyl-1H-pyrrole-2,5-dione Formula: C5H5NO2 Formula weight: 111.10 Purity: …

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