Reagents, R

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

    Alfa Aesar

    Formula: FRb Formula weight: 104.47 Purity: 99.975% (metals basis) CAS Number: 13446-74-7 UN Number: UN3288 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2826.19 Hazard Statements: H301-H311-H331-H315-H319-H335 Toxic if swallowed. Toxic in contact with…

  • Ruthenium black, 99.9% (metals basis)

    Alfa Aesar

    Purity: 99.9% (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) acetate, dimer, 98+%

    Alfa Aesar

    Synonym(s): Tetrakis(aceto)dirhodium(II), Dirhodium tetraacetate Formula: C8H12O8Rh2 Formula weight: 441.99 Purity: 98+% CAS Number: 15956-28-2 Harmonized Tariff Code:  2843.90

  • (R)-(-)-4-Methylmandelic acid, ChiPros, 98%, ee 97+%

    Alfa Aesar

    Synonym(s): (R)-^a-Hydroxy(4-methylphenyl)acetic acid Formula: C9H10O3 Formula weight: 166.18 Purity: 98%, ee 97+% CAS Number: 31284-89-6 Harmonized Tariff Code:  2918.19 Hazard Statements: H318-H335-H315 Causes serious eye damage. May cause respiratory irritation. Causes skin…

  • Ruthenium(III) nitrosylnitrate solution, Ru 1.5% w/v

    Alfa Aesar

    Formula: N4O10Ru Formula weight: 317.09 CAS Number: 34513-98-9 UN Number: UN3218 Hazard Class: 5.1 Packing Group: III Harmonized Tariff Code:  2843.90 Hazard Statements: H272-H318-H315 May intensify fire; oxidizer. Causes serious eye damage. Causes skin irritation. …

  • Rifamycin SV sodium, 98+%

    Alfa Aesar

    Formula: C37H46NNaO12 Formula weight: 719.45 Purity: 98+% CAS Number: 14897-39-3 Harmonized Tariff Code:  2941.90

  • (R)-(-)-2-(Trifluoromethyl)pyrrolidine, 95%

    Alfa Aesar

    Formula: C5H8F3N Formula weight: 139.12 Purity: 95% CAS Number: 119618-29-0 UN Number: UN2925 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  2933.99 Hazard Statements: H314-H318-H228 Causes severe skin burns and eye damage. Causes serious eye damage.…

  • Rhodium(III) bromide hydrate

    Alfa Aesar

    Formula: RhBr3 xH2O Formula weight: 342.62(anhy) CAS Number: 123333-87-9 Harmonized Tariff Code:  2843.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • (R)-(-)-2-Butanol, 98+%

    Alfa Aesar

    Synonym(s): (R)-(-)-sec-Butyl alcohol Formula: C4H10O Formula weight: 74.12 Purity: 98+% CAS Number: 14898-79-4 UN Number: UN1120 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2905.14 Hazard Statements: H226-H319-H335-H336 Flammable liquid and vapour.…

  • Rhodanile Blue

    Alfa Aesar

    Formula: C48H48ClN5O3 Formula weight: 778.40 CAS Number: 14969-56-3 Harmonized Tariff Code:  3204.13 Hazard Statements: H351-H319 Suspected of causing cancer. Causes serious eye irritation. Precautionary Statements: P280-P281-P305+P351+P338-P308+P313-P405-P501a Wear protective…

  • Rosin

    Alfa Aesar

    CAS Number: 8050-09-7 Harmonized Tariff Code:  3806.10 Hazard Statements: H317 May cause an allergic skin reaction. Precautionary Statements: P261-P280-P363-P321-P333+P313-P501a Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye…

  • Rhodium, 5% on activated carbon powder, Type C101038-5, reduced, nominally 50%…

    Alfa Aesar

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

  • Resorcinol, 99%

    Alfa Aesar

    Synonym(s): 1,3-Dihydroxybenzene, 1,3-Benzenediol Formula: C6H6O2 Formula weight: 110.11 Purity: 99% CAS Number: 108-46-3 UN Number: UN2876 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2907.21 Hazard Statements: H302-H315-H319 Harmful if swallowed.…

  • Rhodamine B

    Alfa Aesar

    Synonym(s): Basic Violet 10, C.I. 45170 Formula: C28H31ClN2O3 Formula weight: 479.02 CAS Number: 81-88-9 Harmonized Tariff Code:  3204.13 Hazard Statements: H318-H351-H302 Causes serious eye damage. Suspected of causing cancer. Harmful if swallowed. Precautionary Statements: …

  • (R)-(+)-Styrene oxide, 98%

    Alfa Aesar

    Synonym(s): (R)-(+)-Epoxystyrene, (R)-(+)-2-Phenyloxirane Formula: C8H8O Formula weight: 120.15 Purity: 98% CAS Number: 20780-53-4 UN Number: UN2810 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2910.90 Hazard Statements: H350-H312-H319-H227 May cause…

  • (R)-(+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, 98%

    Alfa Aesar

    Synonym(s): (R)-(+)-BINAP Formula: C44H32P2 Formula weight: 622.69 Purity: 98% CAS Number: 76189-55-4 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • 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:…

  • (R,R)-1,2-Bis(2,4,6-trimethylphenyl)-1,2-ethanediamine dihydrochloride, 95%, ee…

    Alfa Aesar

    Formula: C20H28N2 2HCl Formula weight: 369.38 Purity: 95%, ee 99% Harmonized Tariff Code:  2921.59 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P280g-P305+P351+P338 Wear…

  • 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

  • Rabbit Serum, BT-556

    Alfa Aesar

    Harmonized Tariff Code:  3002.10

  • Ruthenium, 5% on alumina powder

    Alfa Aesar

    CAS Number: 7440-18-8 Harmonized Tariff Code:  3815.12

  • Rubidium hydroxide hydrate, 99% (metals basis)

    Alfa Aesar

    Formula: HORb xH2O Formula weight: 102.48(anhy) Purity: 99% (metals basis) CAS Number: 12026-05-0 UN Number: UN2678 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2825.90 Hazard Statements: H301-H314-H318 Toxic if swallowed. Causes severe skin burns and eye…

  • Rubidium chloride, 99% (metals basis)

    Alfa Aesar

    Formula: RbCl Formula weight: 120.92 Purity: 99% (metals basis) CAS Number: 7791-11-9 Harmonized Tariff Code:  2827.39

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

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Reactive Blue 4, dye content ca 40%

    Alfa Aesar

    Synonym(s): C.I. 61205, Procion® Blue MX-R Formula: C23H14Cl2N6O8S2 Formula weight: 637.44 CAS Number: 13324-20-4 Harmonized Tariff Code:  3204.16 Hazard Statements: H319 Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P337+P313 Wear protective…

  • 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

  • (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

  • Ro 48-8071, 98%

    Alfa Aesar

  • (R)-(+)-2-Pyrrolidinone-5-carboxylic acid, 98+%

    Alfa Aesar

    Synonym(s): D-Pyroglutamic acid, H-D-Pyr-OH Formula: C5H7NO3 Formula weight: 129.12 Purity: 98+% CAS Number: 4042-36-8 Harmonized Tariff Code:  2933.79 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Rhodamine 6G perchlorate, 96%

    Alfa Aesar

    Synonym(s): Ethyl 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate monoperchlorate Formula: C28H31ClN2O7 Formula weight: 543.02 Purity: 96% CAS Number: 13161-28-9 Harmonized Tariff Code:  3204.13 Hazard Statements: H315-H319-H335 Causes skin irritation.…

  • Rubidium sulfate, 99.8% (metals basis)

    Alfa Aesar

    Formula: Rb2SO4 Formula weight: 267.00 Purity: 99.8% (metals basis) CAS Number: 7488-54-2 Harmonized Tariff Code:  2833.29 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: …

  • Rubidium, AAS 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…

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