Reagents, R

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  • Rhodium(III) sulfate tetrahydrate, Premion r, 99.99% (metals basis), Rh 35.9%…

    Alfa Aesar

    Formula: O12Rh2S3 4H2O Formula weight: 566.05 (493.99anhy) Purity: 99.99% (metals basis), Rh 35.9% min CAS Number: 15274-78-9 UN Number: UN3261 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2843.90 Hazard Statements: H314-H318-H290 Causes severe skin burns…

  • Rubidium fluoride, 99.9% (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.   Formula: FRb Formula weight: 104.47 Purity: 99.9% (metals basis) CAS Number: 13446-74-7 UN…

  • 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

  • Rauwolscine hydrochloride, 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): ^a-Yohimbine hydrochloride, 17^a-Hydroxy-20^a-yohimban-16^b-carboxylic acid methyl ester…

  • Riboflavin, 98%, Electrophoresis Grade

    Alfa Aesar

    Synonym(s): Vitamin B2 Formula: C17H20N4O6 Formula weight: 376.37 Purity: 98%, Electrophoresis Grade CAS Number: 83-88-5 Harmonized Tariff Code:  2936.23

  • Ruthenium, AAS standard solution, Specpure r, Ru 1000µg/ml

    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: RuCl3 in 20 HCl UN Number: UN1789 Hazard Class: 8 Packing Group: II Harmonized…

  • 9-cis-Retinoic acid

    Alfa Aesar

    Formula: C20H28O2 Formula weight: 300.44 CAS Number: 5300-03-8 Harmonized Tariff Code:  2916.20 Hazard Statements: H360-H315-H319-H335 May damage fertility or the unborn child. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • (3R)-(+)-3-Acetamidopyrrolidine, 98%

    Alfa Aesar

    Formula: C6H12N2O Formula weight: 128.17 Purity: 98% CAS Number: 131900-62-4 UN Number: UN3259 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2933.99 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. …

  • Ruthenium(III) chloride hydrate, Premion r, 99.99% (metals basis)

    Alfa Aesar

    Formula: RuCl3 xH2O Formula weight: 207.43(anhy) Purity: 99.99% (metals basis) CAS Number: 14898-67-0 UN Number: UN3260 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2843.90 Hazard Statements: H314-H318-H290-H302 Causes severe skin burns and eye damage.…

  • Rubidium, plasma standard solution, Specpure r, Rb 1000µg/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…

  • Rifampin, Molecular Biology Reagent

    Alfa Aesar

    Synonym(s): Rifampicin Formula: C43H58N4O12 Formula weight: 822.94 CAS Number: 13292-46-1 Harmonized Tariff Code:  2941.90 Hazard Statements: H302-H315-H319-H335 Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • (R)-(+)-Styrene oxide, 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): (R)-(+)-Epoxystyrene, (R)-(+)-2-Phenyloxirane Formula: C8H8O Formula weight: 120.15…

  • 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, 10% on activated carbon powder, reduced

    Alfa Aesar

    CAS Number: 7440-18-8 UN Number: UN1362 Hazard Class: 4.2 Packing Group: III Harmonized Tariff Code:  3815.12 Hazard Statements: H228-H252-H315-H319-H335 Flammable solid. Self-heating in large quantities; may catch fire. Causes skin irritation. Causes serious eye irritation. May…

  • Ruthenium powder, -200 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: III Harmonized Tariff Code:  7110.41 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

  • 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…

  • RNA sample loading buffer (6X)

    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…

  • Rhodium(III) nitrate solution, Rh 10-15% w/w (cont. Rh)

    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: N3O9Rh Formula weight: 288.92 CAS Number: 10139-58-9 UN Number: UN3093 Hazard…

  • Reverse Transcriptase, murine, Moloney Murine Leukemia Virus

    Alfa Aesar

    Synonym(s): MMLV RT CAS Number: 9068-38-6 Harmonized Tariff Code:  3507.90

  • (R)-(-)-1,3-Butanediol, 98%

    Alfa Aesar

    Synonym(s): (R)-(-)-1,3-Butylene glycol Formula: C4H10O2 Formula weight: 90.12 Purity: 98% CAS Number: 6290-03-5 Harmonized Tariff Code:  2905.39

  • Ruthenium(IV) oxide, anhydrous, 99.9% (metals basis)

    Alfa Aesar

    Formula: RuO2 Formula weight: 133.07 Purity: 99.9% (metals basis) 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 explosion; strong oxidizer. Precautionary Statements:…

  • RNase Removal Reagent

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Riboflavin-5'-phosphate sodium salt dihydrate

    Alfa Aesar

    Synonym(s): FMN-Na Formula: C17H20N4NaO9P 2H2O Formula weight: 514.36 (478.34anhy) CAS Number: 6184-17-4 Harmonized Tariff Code:  2936.23

  • (R)-(-)-2-Amino-1-butanol, 98%

    Alfa Aesar

    Formula: C4H11NO Formula weight: 89.14 Purity: 98% CAS Number: 5856-63-3 UN Number: UN2735 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2922.19 Hazard Statements: H314-H318-H302-H227 Causes severe skin burns and eye damage. Causes serious eye damage. Harmful…

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

    Alfa Aesar

    Formula: RbCl Formula weight: 120.92 Purity: 99.975% (metals basis) CAS Number: 7791-11-9 Harmonized Tariff Code:  2827.39

  • Rubidium chloride, 99.8% (metals basis)

    Alfa Aesar

    Formula: ClRb Formula weight: 120.92 Purity: 99.8% (metals basis) CAS Number: 7791-11-9 Harmonized Tariff Code:  2827.39

  • Ruthenium(III) nitrosylacetate, Premion r, 99.99% (metals basis)

    Alfa Aesar

    Formula: Ru(NO)(OOCCH3)3 Formula weight: 308.18 Purity: 99.99% (metals basis) Harmonized Tariff Code:  2843.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Riboflavin, 98%

    Alfa Aesar

    Synonym(s): Vitamin B2 Formula: C17H20N4O6 Formula weight: 376.37 Purity: 98% CAS Number: 83-88-5 Harmonized Tariff Code:  2936.23

  • Rhodium, plasma standard solution, Specpure r, Rh 1000µg/ml

    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: RhCl3 in 20 HCl UN Number: UN1789 Hazard Class: 8 Packing Group: II Harmonized…

  • Ribonuclease A, bovine pancreas, purified

    Alfa Aesar

    Synonym(s): EC 3.1.27.5, Rnase A CAS Number: 9001-99-4 Harmonized Tariff Code:  3507.90

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