Reagents, R

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  • Rose Bengal

    Alfa Aesar

    Synonym(s): Acid Red 94, C.I. 45440 Formula: C20H2Cl4I4Na2O5 Formula weight: 1017.65 CAS Number: 632-69-9 Harmonized Tariff Code:  3204.12 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • Ribostamycin sulfate, 630µg/mg

    Alfa Aesar

    Formula: C17H34N4O10 H2SO4 Formula weight: 552.55 Purity: 90% CAS Number: 53797-35-6 Harmonized Tariff Code:  2941.90 Risk Phrases: 61-20/21/22 May cause harm to the unborn child. Harmful by inhalation, in contact with skin and if swallowed. Safety Phrases: 53-22-36/37/39-45 …

  • (R,R)-1,2-Di(2-pyridyl)-1,2-ethanediamine dihydrochloride, 95%, ee 99%

    Alfa Aesar

    Synonym(s): (R,R)-1,2-Bis(2-pyridyl)-1,2-ethanediamine dihydrochloride Formula: C12H14N4 2HCl Formula weight: 287.20 Purity: 95%, ee 99% Harmonized Tariff Code:  2933.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • Rubidium perchlorate, anhydrous, 99.5% (metals basis)

    Alfa Aesar

    Formula: RbClO4 Formula weight: 184.94 Purity: 99.5% (metals basis) CAS Number: 13510-42-4 UN Number: UN1481 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2829.90 Hazard Statements: H272-H315-H319-H335 May intensify fire; oxidizer. Causes skin irritation.…

  • Rhodium, 5% on activated carbon paste

    Alfa Aesar

    CAS Number: 7440-16-6 Harmonized Tariff Code:  3815.12

  • (1R)-(-)-Camphorquinone, 98%

    Alfa Aesar

    Synonym(s): (1R)-(-)-2,3-Bornanedione Formula: C10H14O2 Formula weight: 166.22 Purity: 98% CAS Number: 10334-26-6 Harmonized Tariff Code:  2914.29

  • Retinol, 95%, synthetic

    Alfa Aesar

    Synonym(s): Vitamin A alcohol Formula: C20H30O Formula weight: 286.46 Purity: 95%, synthetic CAS Number: 68-26-8 Harmonized Tariff Code:  2936.21 Hazard Statements: H302-H315-H319 Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. Precautionary…

  • Rubidium, 99.75% (metals basis)

    Alfa Aesar

    Purity: 99.75% (metals basis) CAS Number: 7440-17-7 UN Number: UN1423 Hazard Class: 4.3 Packing Group: I Harmonized Tariff Code:  2805.19 Hazard Statements: H260-H314-H318 In contact with water releases flammable gases which may ignite spontaneously. Causes severe skin burns and…

  • Rubidium, plasma standard solution, Specpure r, Rb 10,000µg/ml

    Alfa Aesar

    Formula: Rb2CO3 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…

  • Ruthenium(III) bromide, Ru 29% min

    Alfa Aesar

    Formula: RuBr3 Formula weight: 340.78 CAS Number: 14014-88-1 UN Number: UN3260 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2843.90 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. Precautionary Statements: …

  • Rubidium hexafluoroarsenate(V), 98% (metals basis)

    Alfa Aesar

    Formula: RbAsF6 Formula weight: 359.92 Purity: 98% (metals basis) CAS Number: 43023-95-6 UN Number: UN1557 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2826.90 Hazard Statements: H301-H331 Toxic if swallowed. Toxic if inhaled. Precautionary Statements: …

  • Rubidium nitrate, Puratronic r, 99.975% (metals basis)

    Alfa Aesar

    Formula: RbNO3 Formula weight: 147.47 Purity: 99.975% (metals basis) CAS Number: 13126-12-0 UN Number: UN1477 Hazard Class: 5.1 Packing Group: III Harmonized Tariff Code:  2834.29 Hazard Statements: H272-H315-H319 May intensify fire; oxidizer. Causes skin irritation.…

  • Resazurin sodium salt

    Alfa Aesar

    Synonym(s): 7-Hydroxy-3H-phenoxazin-3-one-10-oxide sodium salt Formula: C12H6NNaO4 Formula weight: 251.18 CAS Number: 62758-13-8 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • RIPA buffer with EDTA

    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…

  • (R,R)-1,2-Di(3-pyridyl)-1,2-ethanediamine tetrahydrochloride, 95%, ee 99%

    Alfa Aesar

    Synonym(s): (R,R)-1,2-Bis(3-pyridyl)-1,2-ethanediamine tetrahydrochloride Formula: C12H14N4 4HCl Formula weight: 360.11 Purity: 95%, ee 99% Harmonized Tariff Code:  2933.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Rhodium sponge, -20 mesh, 99.95% (metals basis)

    Alfa Aesar

    Purity: 99.95% (metals basis) CAS Number: 7440-16-6 UN Number: UN3089 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  7110.31 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

  • Ruthenium(IV) oxide, Electronic Grade, Premion r, 99.95% (metals basis), Ru…

    Alfa Aesar

    Synonym(s): Ruthenium dioxide Formula: RuO2 Formula weight: 133.07 Purity: 99.95% (metals basis), Ru typically 74% CAS Number: 12036-10-1 UN Number: UN1479 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2843.90 Hazard Statements: H271 May cause fire or…

  • RIPA buffer with Triton r X-100 (5X)

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Rolipram, 98%

    Alfa Aesar

  • Resiniferatoxin, 99+%

    Alfa Aesar

    Formula: C37H40O9 Formula weight: 628.71 Purity: 99+% CAS Number: 57444-62-9 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  3002.90 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye…

  • Ruthenium sponge, -20 mesh, 99.95% (metals basis)

    Alfa Aesar

    Purity: 99.95% (metals basis) CAS Number: 7440-18-8 UN Number: UN3089 Hazard Class: 4.1 Packing Group: II Harmonized Tariff Code:  7110.41 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

  • Rhodium(II) octanoate dimer

    Alfa Aesar

    Formula: C32H60O8Rh2 Formula weight: 778.63 CAS Number: 73482-96-9 Harmonized Tariff Code:  2843.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Resorcinol-O,O'-diacetic acid, 97+%

    Alfa Aesar

    Synonym(s): 1,3-Bis(carboxymethoxy)benzene Formula: C10H10O6 Formula weight: 226.19 Purity: 97+% CAS Number: 102-39-6 Harmonized Tariff Code:  2918.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Rubidium bromide, 99.8% (metals basis)

    Alfa Aesar

    Formula: RbBr Formula weight: 165.38 Purity: 99.8% (metals basis) CAS Number: 7789-39-1 Harmonized Tariff Code:  2827.59

  • Rhodamine 6G

    Alfa Aesar

    Synonym(s): Basic Red 1, C.I. 45160 Formula: C28H31ClN2O3 Formula weight: 479.02 CAS Number: 989-38-8 Harmonized Tariff Code:  3204.13 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a Wash thoroughly after handling. Do…

  • Rhenium foil, 0.5mm (0.02in) thick, annealed, 99.97% (metals basis)

    Alfa Aesar

    Purity: 99.97% (metals basis) CAS Number: 7440-15-5 Harmonized Tariff Code:  8112.99

  • (R)-(-)-N,N-Dimethyl-1-ferrocenylethylamine (L)-tartrate, 95%

    Alfa Aesar

    Formula: C18H25FeNO6 Formula weight: 407.26 Purity: 95% Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Ribonuclease T1, Aspergillus oryzae in 2.8M ammonium sulfate

    Alfa Aesar

    CAS Number: 9026-12-4 Harmonized Tariff Code:  3507.90

  • (R,R)-1,2-Bis(4-methoxycarbonylphenyl)-1,2-ethanediamine dihydrochloride, 95%,…

    Alfa Aesar

    Formula: C18H20N2O4 2HCl Formula weight: 401.30 Purity: 95%, ee 99% Harmonized Tariff Code:  2922.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Rhodium powder, -325 mesh, 99.95% (metals basis)

    Alfa Aesar

    Purity: 99.95% (metals basis) CAS Number: 7440-16-6 UN Number: UN3089 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  7110.31 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

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