Reagents, E

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  • Eriochrome Black T

    Alfa Aesar

    Synonym(s): C.I. 14645, Mordant Black 11 Formula: C20H12N3NaO7S Formula weight: 461.39 CAS Number: 1787-61-7 Harmonized Tariff Code:  2927.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • Eosin Yellowish

    Alfa Aesar

    Synonym(s): Acid Red 87, C.I. 45380 Formula: C20H6Br4Na2O5 Formula weight: 691.86 CAS Number: 17372-87-1 Harmonized Tariff Code:  3204.12 Hazard Statements: H319 Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P337+P313 Wear protective…

  • Ethyl acetate, 99%

    Alfa Aesar

    Synonym(s): Acetic acid ethyl ester Formula: C4H8O2 Formula weight: 88.11 Purity: 99% CAS Number: 141-78-6 UN Number: UN1173 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2915.31 Hazard Statements: H225-H319-H336 Highly flammable liquid and vapour. Causes…

  • Ethylenediaminetetraacetic acid, 99%

    Alfa Aesar

    Synonym(s): Edetic acid, EDTA Formula: C10H16N2O8 Formula weight: 292.24 Purity: 99% CAS Number: 60-00-4 Harmonized Tariff Code:  2922.49 Hazard Statements: H319 Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P337+P313 Wear protective…

  • Erucic acid, tech. 90%

    Alfa Aesar

    Synonym(s): cis-13-Docosenoic acid Formula: C22H42O2 Formula weight: 338.58 Purity: tech. 90% CAS Number: 112-86-7 Harmonized Tariff Code:  2916.19

  • Ethyl 4-chloroacetoacetate, 97%

    Alfa Aesar

    Synonym(s): 4-Chloroacetoacetic acid ethyl ester Formula: C6H9ClO3 Formula weight: 164.59 Purity: 97% CAS Number: 638-07-3 UN Number: UN2922 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2918.30 Hazard Statements: H301-H314-H318-H227 Toxic if swallowed.…

  • Ethanol-d{6}, anhydrous, 99+% (Isotopic)

    Alfa Aesar

    Formula: C2D6O Formula weight: 52.11 Purity: 99+% (Isotopic) CAS Number: 1516-08-1 UN Number: UN1170 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2845.90 Hazard Statements: H225 Highly flammable liquid and vapour. Precautionary Statements: …

  • Ethoxymethylenemalononitrile, 98%

    Alfa Aesar

    Formula: C6H6N2O Formula weight: 122.13 Purity: 98% CAS Number: 123-06-8 UN Number: UN3439 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2926.90 Hazard Statements: H301-H311-H334-H317 Toxic if swallowed. Toxic in contact with skin. May cause allergy or…

  • Ethanol, denatured, Spectrophotometric Grade, 90%, packaged under Argon in…

    Alfa Aesar

    Formula: C2H6O Formula weight: 46.08 Purity: 90%, packaged under Argon in resealable ChemSeal^t bottles CAS Number: 64-17-5 UN Number: UN1987 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2207.20 Hazard Statements: H225-H371 Highly flammable liquid and vapour.…

  • Ethyl hexanoate, 99%

    Alfa Aesar

    Synonym(s): Ethyl caproate, Hexanoic acid ethyl ester Formula: CH3(CH2)4CO2CH2CH3 Formula weight: 144.21 Purity: 99% CAS Number: 123-66-0 UN Number: UN3272 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2915.90 Hazard Statements: H226-H315-H319-H335 …

  • Ethylenediaminetetraacetic acid disodium salt, 0.100N (0.050M) Standardized…

    Alfa Aesar

    Synonym(s): EDTA disodium salt Formula: (NaO2CCH2)2NCH2CH2N(CH2CO2H)2 Formula weight: 336.22 CAS Number: 139-33-3 Harmonized Tariff Code:  2922.49

  • Ethyl cinnamate, 98+%

    Alfa Aesar

    Synonym(s): Cinnamic acid ethyl ester Formula: C11H12O2 Formula weight: 176.22 Purity: 98+% CAS Number: 103-36-6 Harmonized Tariff Code:  2916.39

  • Exendin 4

    Alfa Aesar

    Formula: C184H282N50O60S Formula weight: 4186.56 CAS Number: 141758-74-9 Harmonized Tariff Code:  2933.99

  • Ethidium bromide, 98% (dry wt.)

    Alfa Aesar

    Synonym(s): 3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide, Homidium bromide Formula: C21H20BrN3 Formula weight: 394.32 Purity: 98% (dry wt.) CAS Number: 1239-45-8 UN Number: UN2811 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2933.99 Hazard…

  • 3-Ethoxysalicylaldehyde, 97%

    Alfa Aesar

    Synonym(s): 3-Ethoxy-2-hydroxybenzaldehyde Formula: C9H10O3 Formula weight: 166.18 Purity: 97% CAS Number: 492-88-6 Harmonized Tariff Code:  2912.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • (S)-(+)-Epichlorohydrin, 98+%

    Alfa Aesar

    Synonym(s): (S)-(+)-1-Chloro-2,3-epoxypropane Formula: C3H5ClO Formula weight: 92.53 Purity: 98+% CAS Number: 67843-74-7 UN Number: UN2023 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2910.30 Hazard Statements: H300-H310-H330-H350-H314-H318-H226-H317 …

  • 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 98+%

    Alfa Aesar

    Synonym(s): EDAC, EDCI Formula: C8H17N3 HCl Formula weight: 191.70 Purity: 98+% CAS Number: 25952-53-8 Harmonized Tariff Code:  2925.19 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • 3-Ethoxy-4-hydroxybenzaldehyde, 98%

    Alfa Aesar

    Synonym(s): Ethyl vanillin Formula: C9H10O3 Formula weight: 166.18 Purity: 98% CAS Number: 121-32-4 Harmonized Tariff Code:  2912.42 Hazard Statements: H302-H315-H319-H335 Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • Ethyl Phenylpropiolate, 98+%

    Alfa Aesar

    Synonym(s): Ethyl phenylacetylenecarboxylate Phenylpropiolic acid ethyl ester CAS Number: 2216-94-6 MDL: MFCD00009578 EINECS: 218-703-8 Formula: C6H5C≡CCO2CH2CH3 Formula Weight: 174.20 Boiling…

  • 2-Ethylhexanal, 97%

    Alfa Aesar

    Synonym(s): 2-Ethylcapronaldehyde, 2-Ethylhexaldehyde Formula: C8H16O Formula weight: 128.21 Purity: 97% CAS Number: 123-05-7 UN Number: UN1989 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2912.19 Hazard Statements: H226-H315-H319-H335 Flammable liquid…

  • Ethyl L-lactate, 99%

    Alfa Aesar

    Synonym(s): L-Lactic acid ethyl ester Formula: C5H10O3 Formula weight: 118.13 Purity: 99% CAS Number: 687-47-8 UN Number: UN1192 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2918.11 Hazard Statements: H318-H226-H335 Causes serious eye damage. Flammable…

  • Ethylene glycol, Spectrophotometric grade, 99+%

    Alfa Aesar

    Formula: C2H6O2 Formula weight: 62.07 Purity: 99+% CAS Number: 107-21-1 Harmonized Tariff Code:  2905.31 Hazard Statements:

  • Ethyl 3,4,5-trihydroxybenzoate, 98%

    Alfa Aesar

    Synonym(s): Ethyl gallate, 3,4,5-Trihydroxybenzoic acid ethyl ester Formula: C9H10O5 Formula weight: 198.18 Purity: 98% CAS Number: 831-61-8 Harmonized Tariff Code:  2918.29

  • Ethanol, anhydrous, denatured, HPLC Grade, 90%, 5% methanol, 5% isopropanol

    Alfa Aesar

    Formula: C2H6O Formula weight: 46.08 Purity: 90%, 5% methanol, 5% isopropanol CAS Number: 64-17-5 UN Number: UN1987 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2207.20 Hazard Statements: H225-H371 Highly flammable liquid and vapour. May cause damage to…

  • 3-Ethyl-3-pentanol, 97%

    Alfa Aesar

    Synonym(s): Triethylcarbinol Formula: C7H16O Formula weight: 116.20 Purity: 97% CAS Number: 597-49-9 UN Number: UN1987 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2905.19 Hazard Statements: H226 Flammable liquid and vapour. Risk Phrases: 10 Flammable.

  • Ethyl 2-bromo-4H-thieno[3,2-b]pyrrole-5-carboxylate, 95%

    Alfa Aesar

    Synonym(s): 2-Bromo-4H-thieno[3,2-b]pyrrole-5-carboxylic acid ethyl ester Formula: C9H8BrNO2S Formula weight: 274.13 Purity: 95% CAS Number: 23

  • Ethanol, anhydrous, denatured, Spectrophotometric Grade, 90%, 5% methanol, 5%…

    Alfa Aesar

    Formula: C2H6O Formula weight: 46.08 Purity: 90%, 5% methanol, 5% isopropanol CAS Number: 64-17-5 UN Number: UN1987 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2207.20 Hazard Statements: H225-H371 Highly flammable liquid and vapour. May cause damage to…

  • Ethylenediaminetetraacetic acid disodium magnesium salt hydrate

    Alfa Aesar

    Synonym(s): EDTA disodium magnesium salt hydrate Formula: C10H12MgN2Na2O8 xH2O Formula weight: 358.50(anhy) CAS Number: 14402-88-1 Harmonized Tariff Code:  2922.49

  • Ethylene glycol, 99%

    Alfa Aesar

    Synonym(s): 1,2-Dihydroxyethane, 1,2-Ethanediol Formula: C2H6O2 Formula weight: 62.07 Purity: 99% CAS Number: 107-21-1 Harmonized Tariff Code:  2905.31 Hazard Statements: H302 Harmful if swallowed. Precautionary Statements: P264-P270-P301+P312-P330-P501a Wash thoroughly…

  • Ethanol, Alcohol Reagent, anhydrous, denatured, ACS, 94-96%

    Alfa Aesar

    Formula: C2H6O Formula weight: 46.08 Purity: 94-96% CAS Number: 64-17-5 UN Number: UN1987 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2207.20 Hazard Statements: H225-H371 Highly flammable liquid and vapour. May cause damage to organs. Precautionary…

  • Ethanol, denatured, 91.6%, 3.7% methanol, 1.9% MIBK, 1% heptane, 1% ethyl…

    Alfa Aesar

    Synonym(s): Ethyl alcohol Formula: C2H6O Formula weight: 46.08 Purity: 91.6%, 3.7% methanol, 1.9% MIBK, 1% heptane, 1% ethyl acetate, 1% toluene (v/v) C

  • Ethyl 2,2-diethylbutyrate, 98%

    Alfa Aesar

    Synonym(s): 2,2-Diethylbutyric acid ethyl ester, Ethyl triethylacetate Formula: C10H20O2 Formula weight: 172.27 Purity: 98% CAS Number: 34666-17-6 Harmonized Tariff Code:  2915.90

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