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  • exo-7-Oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, 98+%

    Alfa Aesar

    Synonym(s): exo-3,6-Epoxy-1,2,3,6-tetrahydrophthalic anhydride Formula: C8H6O4 Formula weight: 166.13 Purity: 98+% CAS Number: 6118-51-0 Harmonized Tariff Code:  2915.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • 1-Octanol, 99%

    Alfa Aesar

    Synonym(s): Capryl alcohol, n-Octyl alcohol Formula: C8H18O Formula weight: 130.23 Purity: 99% CAS Number: 111-87-5 Harmonized Tariff Code:  2905.16 Hazard Statements: H315-H319-H227 Causes skin irritation. Causes serious eye irritation. Combustible liquid. Precautionary…

  • Oleic acid, tech. 90%

    Alfa Aesar

    Synonym(s): cis-9-Octadecenoic acid Formula: C18H34O2 Formula weight: 282.47 Purity: tech. 90% CAS Number: 112-80-1 Harmonized Tariff Code:  2916.15 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: …

  • Oxytetracycline, 98+%

    Alfa Aesar

    Formula: C22H24N2O9 Formula weight: 460.43 Purity: 98+% CAS Number: 79-57-2 Harmonized Tariff Code:  2941.30

  • Orcein, for analysis

    Alfa Aesar

    CAS Number: 1400-62-0 Harmonized Tariff Code:  2934.99 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a Wash thoroughly after handling. Do not eat, drink or smoke when using this product. IF SWALLOWED: Immediately call a POISON…

  • Oxalic acid dihydrate, 98%

    Alfa Aesar

    Formula: C2H2O4 2H2O Formula weight: 126.07 (90.04anhy) Purity: 98% CAS Number: 6153-56-6 UN Number: UN3261 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2917.11 Hazard Statements: H314-H302-H312 Causes severe skin burns and eye damage. Harmful if swallowed.…

  • 1,7-Octadiyne, 98%

    Alfa Aesar

    Formula: HC C(CH2)4C CH Formula weight: 106.17 Purity: 98% CAS Number: 871-84-1 UN Number: UN3295 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2901.29 Hazard Statements: H304-H226-H315-H319-H335 May be fatal if swallowed and enters airways. Flammable liquid…

  • 3-Octanone, 98%

    Alfa Aesar

    Synonym(s): n-Amyl ethyl ketone, Ethyl n-pentyl ketone Formula: C8H16O Formula weight: 128.22 Purity: 98% CAS Number: 106-68-3 UN Number: UN1224 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2914.19 Hazard Statements: H226-H315-H319-H335 Flammable liquid…

  • Oil Red O

    Alfa Aesar

    Synonym(s): C.I. 26125, Solvent Red 27 Formula: C26H24N4O Formula weight: 408.51 CAS Number: 1320-06-5 Harmonized Tariff Code:  3204.19

  • Oxolinic acid, 98%

    Alfa Aesar

    Synonym(s): 5,8-Dihydro-5-ethyl-8-oxo-1,3-dioxolo[4,5-g]quinoline-7-carboxylic acid Formula: C13H11NO5 Formula weight: 261.23 Purity: 98% CAS Number: 14698-29-4 Harmonized Tariff Code:  2941.90 Risk Phrases: 22 Harmful if swallowed. Safety Phrases: 36-60 Wear suitable…

  • Octanoyl chloride, 99%

    Alfa Aesar

    Synonym(s): Capryloyl chloride Formula: CH3(CH2)6COCl Formula weight: 162.66 Purity: 99% CAS Number: 111-64-8 UN Number: UN3265 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2915.90 Hazard Statements: H301-H314-H318-H227 Toxic if swallowed. Causes severe…

  • Oleyl alcohol, 99+%

    Alfa Aesar

    Synonym(s): cis-9-Octadecen-1-ol Formula: C18H36O Formula weight: 268.48 Purity: 99+% CAS Number: 143-28-2 Harmonized Tariff Code:  2905.29 Hazard Statements: H315 Causes skin irritation. Precautionary Statements: P280-P264-P362-P321-P332+P313-P302+P352 Wear protective…

  • 4-n-Octyloxybenzonitrile, 98%

    Alfa Aesar

    Formula: C15H21NO Formula weight: 231.34 Purity: 98% CAS Number: 88374-55-4 UN Number: UN3439 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2926.90 Hazard Statements: H331-H302-H312 Toxic if inhaled. Harmful if swallowed. Harmful in contact with skin. …

  • 2-Oxetanemethanol, 96%

    Alfa Aesar

  • trans-2-Octenal, 95%

    Alfa Aesar

    Formula: C8H14O Formula weight: 126.20 Purity: 95% CAS Number: 2548-87-0 Harmonized Tariff Code:  2912.19 Hazard Statements: H315-H317-H227 Causes skin irritation. May cause an allergic skin reaction. Combustible liquid. Precautionary Statements: P280g-P262 Wear protective…

  • Oxazole, 98+%

    Alfa Aesar

    Formula: C3H3NO Formula weight: 69.07 Purity: 98+% CAS Number: 288-42-6 UN Number: UN2924 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2934.99 Hazard Statements: H225-H314-H318 Highly flammable liquid and vapour. Causes severe skin burns and eye damage.…

  • n-Octadecylphosphonic acid, 97%

    Alfa Aesar

    Formula: C18H39O3P Formula weight: 334.48 Purity: 97% CAS Number: 4724-47-4 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Octamethylcyclotetrasiloxane, 98%

    Alfa Aesar

    Formula: C8H24O4Si4 Formula weight: 296.62 Purity: 98% CAS Number: 556-67-2 UN Number: UN1993 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2934.99 Hazard Statements: H226-H361 Flammable liquid and vapour. Suspected of damaging fertility or the unborn child. …

  • 2,3-O-Isopropylidene-D-erythronolactone, 98%

    Alfa Aesar

    Formula: C7H10O4 Formula weight: 158.15 Purity: 98% CAS Number: 25581-41-3 Harmonized Tariff Code:  2932.99

  • Okadaic acid, 98%

    Alfa Aesar

    Formula: C44H68O13 Formula weight: 805.02 Purity: 98% CAS Number: 78111-17-8 UN Number: UN3462 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2932.19 Hazard Statements: H300-H310-H330-H315 Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled.…

  • 2'-O-Methylguanosine, 99%

    Alfa Aesar

    Formula: C11H15N5O5 Formula weight: 297.27 Purity: 99% CAS Number: 2140-71-8 Harmonized Tariff Code:  2934.99 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine hydrochloride, 99+%

    Alfa Aesar

    Formula: C7H4F5NO HCl Formula weight: 249.57 Purity: 99+% CAS Number: 57981-02-9 Harmonized Tariff Code:  2928.00

  • 2'-O-Methyladenosine, 99%

    Alfa Aesar

    Formula: C11H15N5O4 Formula weight: 281.27 Purity: 99% CAS Number: 2140-79-6 Harmonized Tariff Code:  2934.99

  • 2,5-Bis(1-naphthyl)-1,3,4-oxadiazole, 99%

    Alfa Aesar

    Synonym(s): 2,5-Di(1-naphthyl)-1,3,4-oxadiazole Formula: C22H14N2O Formula weight: 322.37 Purity: 99% CAS Number: 905-62-4 Harmonized Tariff Code:  2934.99 Safety Phrases: 22-24/25 Do not breathe dust. Avoid contact with skin and eyes.

  • cis-4-Octene, 97%

    Alfa Aesar

    Formula: C8H16 Formula weight: 112.22 Purity: 97% CAS Number: 7642-15-1 UN Number: UN3295 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2901.29 Hazard Statements: H225-H315-H319-H335 Highly flammable liquid and vapour. Causes skin irritation. Causes serious…

  • 3-O-Benzyl-1,2:5,6-di-O-isopropylidene-^a-D-glucofuranose, 98%

    Alfa Aesar

    Formula: C19H26O6 Formula weight: 350.41 Purity: 98% CAS Number: 18685-18-2 Harmonized Tariff Code:  2940.00 Risk Phrases: 36/37/38 Irritating to eyes, respiratory system and skin. Safety Phrases: 23-26-37-60 In case of contact with eyes, rinse immediately with plenty of water…

  • Oxalacetic acid, 98+%

    Alfa Aesar

    Formula: C4H4O5 Formula weight: 132.07 Purity: 98+% CAS Number: 328-42-7 UN Number: UN3261 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2918.30 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. Precautionary…

  • 1,4-Oxazepan-5-one, 97%

    Alfa Aesar

    Synonym(s): 4-Oxacaprolactam, Tetrahydro-1,4-oxazepin-5(2H)-one Formula: C5H9NO2 Formula weight: 115.13 Purity: 97% CAS Number: 10341-26-1 Packing Group: III Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye…

  • Osmium, plasma standard solution, Specpure r, Os 1000µg/ml

    Alfa Aesar

    Formula: (NH4)2OsCl6 in 20 HCl UN Number: UN1789 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  3822.00 Hazard Statements: H314-H335 Causes severe skin burns and eye damage. May cause respiratory irritation. Precautionary Statements: …

  • 2-Oxocyclopentylacetic acid, 97%

    Alfa Aesar

    Synonym(s): Cyclopentanone-2-acetic acid, 2-Oxocyclopentaneacetic acid Formula: C7H10O3 Formula weight: 142.15 Purity: 97% CAS Number: 1460-38-4 Harmonized Tariff Code:  2918.30 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Oleyl alcohol, tech. 80-85%

    Alfa Aesar

    Synonym(s): cis-9-Octadecen-1-ol, cis-9-Octadecenyl alcohol Formula: C18H36O Formula weight: 268.48 Purity: tech. 80-85% CAS Number: 143-28-2 Harmonized Tariff Code:  2905.29 Hazard Statements: H315 Causes skin irritation. Precautionary Statements: …

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