Chemicals Reagents R

Chemicals Reagents R

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  • Resomer(R) RG 757 S, Poly(D,L-lactide-co-glycolide) ester terminated, Lactide: Glycolide 75:25, lactide:glycolide 75:25

    Synonyms: Resomer(R) RG 757 S, PLGA Linear Structural Formula: HO[C2H4O2]n[C2H2O2]mCH3 Storage: 2-8C Application: Biodegradable, biocompatible, and bioresorbable copolymer composed of D,L-Lactide and Glycolide. This amorphous material has been used in sustained release drug delivery applications, by...

  • Riboflavin

    MilliporeSigma

    European Pharmacopoeia (EP) Reference Standard Synonym(s): (−)-Riboflavin; Lactoflavin; Vitamin B2; Vitamin G Empirical Formula: C17H20N4O6 Formula Weight: 376.36 Linear Formula: C17H20N4O6 MDL...

  • ALDRICH (R)-(+)-3,3'-Dibromo-1,1'-bi-2-naphthol, 97%

    Synonym(s): ( R )-3,3'-Dibromo-1,1'-bi-2-naphthol; ( R )-3,3'-Dibromo-[1,1'-Binaphthalene]-2,2'-diol; ( R )-Dibromo-1,1'-Bi-2,2'-naphthol; ( R )-Dibromo-1,1'-Binaphthalene-2,2'-diol; ( R )-Dibromo-1,1-Binaphthol; ( R )-Dibromo-BINOL; ( R )-Dibromo-bi-2-naphthol Empirical Formula:...

  • SIGMA Ribonuclease A from bovine pancreas Type I-AS, 50-100 Kunitz units/mg protein

    Synonym(s): Pancreatic Ribonuclease; RNase A; Ribonuclease I; Ribonucleate 3'-pyrimidinooligonucleotidohydrolase MDL Number: MFCD00132181 Storage: −20°C

  • Rice flour (Total As and As species)

    ERM ® certified Reference Material Storage: −20°C

  • Ramipril impurity K British Pharmacopoeia (BP) Reference Standard

    This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and...

  • ALDRICH (R)-(+)-Atenolol, 99%

    Synonym(s): (+)-4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]benzeneacetamide Empirical Formula: C14H22N2O3 Linear Formula: (CH3)2CHNHCH2CH(OH)CH2OC6H4CH2CONH2 Formula...

  • ALDRICH (R)-(+)-2-(Diphenylmethyl)pyrrolidine, 97%

    Empirical Formula: C17H19N Linear Formula: C17H19N Formula Weight: 237.34 MDL Number: MFCD01861800 Purity: 97% Density: 1.062 g/mL at 25 °C(lit.) Refractive Index: n 20/D 1.5870(lit.)

  • ALDRICH (R)-(+)-1-(1-Naphthyl)ethylamine, >=99%

    Synonym(s): ( R )-(+)-α-Methyl-1-naphthalenemethylamine Empirical Formula: C12H13N Linear Formula: C10H7CH(CH3)NH2 Formula Weight: 171.24 MDL Number: MFCD00064114 Purity: ≥99% Boiling Point:...

  • ALDRICH (R)-(+)-2,2'-Dimethoxy-1,1'-binaphthalene, 99%

    Synonym(s): ( R )-(+)-2,2'-Dimethoxy-1,1'-binaphthyl; ( R )-1,1'-Bi-2-naphthyl dimethyl ether Empirical Formula: C22H18O2 Linear Formula: C22H18O2 Formula Weight: 314.38 MDL Number: MFCD00091146 Purity: ≥98.5% (HPLC); 99%...

  • Rogard II Prefilter 30 cm (12 in.), Pretreats feed water to protect the reverse osmosis (RO) membrane

    The Rogard II Prefilter, with melt blown polypropylene, 5.0 mum, pretreats water by removing large particles from tap feed water. This protects the reverse osmosis (RO) membrane against fouling and chlorine oxidation. For use with Milli-Q(R) and Milli-RO(TM) bowl-style water purification systems....

  • Ruthenium(III) chloride hydrate
  • SIGMA Retinyl palmitate Type IV, ~1,800,000 USP units/g, oil

    Synonym(s): Vitamin A palmitate; all−trans−Retinol palmitate Empirical Formula: C36H60O2 Linear Formula: C36H60O2 Formula Weight: 524.86 MDL Number: MFCD00019414 Storage: 2-8°C Beilstein Registry Number: 1917366

  • Rosuvastatin calcium =98% (HPLC)

    Synonym: (E)-7-[4-(4-Fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrim idin-5-yl]-(3R,5S)-3,5-dihydroxyhept-6-enoic acid, calcium salt (2:1), Rosuvastatin hemicalcium CAS Number: 147098-20-2 Empirical Formula (Hill Notation): C22H27FN3O6S...

  • ALDRICH (RP)-1-[(R)-a-(Dimethylamino)-2-(diphenylphosphino)benzyl]-2-diphenylphosphinoferrocene, optical purity ee: >=99%

    Synonym(s): (2 S )-1-[( R )-(Dimethylamino)[2-(diphenylphosphino)phenyl]methyl]-2-(diphenylphosphino)ferrocene (acc to CAS); Taniaphos SL-T001-1 Empirical Formula: C43H39FeNP2 Linear Formula: C43H39FeNP2 Formula Weight: 687.57...

  • SIGMA RPMI 2650

    MilliporeSigma

    Storage: −196°C

  • SIGMA Ro 8-4304 solid

    MilliporeSigma

    Empirical Formula: C21H23FN2O3 -+ HCl Linear Formula: C21H23FN2O3 -+ HCl Formula Weight: 406.88 MDL Number: MFCD03101333 Storage: 2-8°C

  • Ribavirin

    MilliporeSigma

    European Pharmacopoeia (EP) Reference Standard Synonym(s): 1-β-D-Ribofuranosyl-1,2,4-triazole-3-carboxamide Empirical Formula: C8H12N4O5 Formula Weight: 244.20 Linear Formula: C8H12N4O5 MDL Number:...

  • RABBIT TRACHEA, 1Each, Tissue

    Rockland Immunochemicals Inc

    RABBIT TRACHEA, Non-sterile, Tissue, No expiration date is given for this product if properly stored.

  • Rocuronium for peak identification

    European Pharmacopoeia (EP) Reference Standard Synonym(s): Rocuronium bromide Empirical Formula: C32H53BrN2O4 Formula Weight: 609.68 Linear Formula: C32H53BrN2O4 MDL Number: MFCD00867768

  • ALDRICH Rhodium(III) chloride hydrate, Rh 38-40%

    Synonym(s): Rhodium trichloride hydrate Empirical Formula: Cl3Rh -+ xH2O Linear Formula: RhCl3 -+ xH2O Formula Weight: 209.26 (anhydrous basis) MDL Number: MFCD00149839 Melting Point: 100 °C (dec.)(lit.)

  • ALDRICH Resveratrol-(4-hydroxyphenyl-13C6), 99 atom % 13C, 97% (CP)

    Synonym(s): 3,4',5-Trihydroxy- trans -stilbene- 13 C6; 5-[(1E)-2-(4-Hydroxyphenyl)ethenyl]-1,3-benzenediol- 13 C6 Empirical Formula: 13 C6C8H12O3 Linear Formula: 13 C6C8H12O3 Formula Weight:...

  • "Rifaximin, VETRANAL™, analytical standard"

    Synonyms: 4-Deoxy-4′-methylpyrido[1′,2′-1,2]imidazo[5,4- c ]rifamycin SV; Rifacol Formula: C43H51N3O11 Formula Weight: 785.88 CAS No.: 80621-81-4 Legal Information: VETRANAL is a trademark of Sigma-Aldrich Co. LLC

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