Eosin Y, 94% (Dye Content), 500g
Eosin Y, 94% (Dye Content), 500gFor Research & DevelopmentNot for drug, human, animal, or food useCertificate of Analysis:Appearance (Color) Brownish redAppearance (Form) PowderAssay (Dye Content) 94.0%Spectroscopy: Peak 516 nm, ratio 1.43 @ 501/531 nm.Density @ peak 0.617 au.Chromatography: N/AStaining Performance (Satisfactory in):-Alcoholic and aqueous counterstains vs hematoxylin.-Nocht’s method on bone tissue sections.-Constituent of a Wright Stain.-EMD Media.CAS: 17372-87-1FORMULA: C20H6Br4Na2O5This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Nickel Acetate Tetrahydrate, 99.9+%, 500g
Synonyms: Nickel(II) acetate tetrahydrate, Acetic acid nickel(II) saltCAS: 6018-89-9Molecular Formula: Ni(OCOCH3)2 · 4H2OMolecular Weight: 248.84 g/molTestSpecificationDescriptionGreen crystalline powderNickel23.28% min.Cobalt0.007% max.Copper0.0002% max.Iron0.0004% max.Lead0.0003% max.Silicon0.012% max.Sodium0.01% max.Zinc0.0002% max.Sulfate0.029% max.Chloride0.002% max.Insoluble Matter0.02% max. This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Potassium Bitartrate, 99.85%, 500g
Potassium Bitartrate, 99+%, 500gFor Research & DevelopmentNot for drug, human, animal, or food useSpecifications:Appearance (Color) WhiteAppearance (Form) PowderAssay 99.0-101.0%Insoluble Matter – No undissolved residue remainsLead <2 ppmIdentification Passes TestSolubility Passes TestCAS: 868-14-4FORMULA: KO2CCH(OH)CH(OH)CO2HThis item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Acetanilide, 99+%, 500g
Acetanilide, 99+%, 500gFor Research & DevelopmentNot for drug, human, animal, or food useSpecifications:Appearance (Color) White to off-white Appearance (Form) Crystalline powder or flakesAssay 99+%Melting Point 113-115 ºCWater Content (Karl Fisher) <1.0%Related Substances Aniline: <0.15%Free acid: <0.5%Ash <0.1%CAS: 103-84-4FORMULA: CH3CONHC6H5 This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Chitosan, 90+% (Deacetylated), 500g
Synonyms: Deacetylated chitin, Poly(D-glucosamine)CAS: 9012-76-4Molecular Formula: (C6H11O4N)nMolecular Weight: 700,000 – 800,000 g/molTestSpecificationIdentificationAdding CuC4H4O6 TS and heating a brick-red or deep brown precipitate is formedCharacteristicsOff-white or light yellow powderDAC Degree90% min.Viscosity50mpa•s~200mpa•sMoisture10% max.Ash1.5% max.pH6.5 – 8.5Acid-insoluble Substance1.0% max.Bulk DensityMeets the requirementsMesh SizeMeets the requirementsArsenic0.1 ppm max.Lead0.5 ppm max.Mercury0.1 ppm max.Cadmium0.5 ppm max.Heavy Metals10 ppm max.Total Plate Count3000 cfu/g max.Yeast & Mold100 cfu/g max.E. coliNegativeSalmonellaNegativeStaphylococcus AureusNegative This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Hydroxylamine Sulfate, Reagent, 99+%, 500g
Hydroxylamine Sulfate, Reagent, 99+%, 500gFor Research & DevelopmentNot for drug, human, animal, or food useSpecifications:Appearance (Color) WhiteAppearance (Form) CrystalsAssay 99+%Moisture <0.5%Ammonium Sulfate <1%Free Acidity % (listed on COA)CAS: 10039-54-0FORMULA: (NH2OH)2 · H2SO4This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Sodium Molybdate Dihydrate, 99.5+%, 500g
Synonyms: Molybdic acid sodium salt dihydrateCAS: 10102-40-6Molecular Formula: Na2MoO4 · 2H2OMolecular Weight: 241.95 g/molTestSpecificationAssay99.50% min.Insoluble Matter0.01% max.pH of 5% solution7.0 – 10.5Chloride (Cl)0.05% max.Phosphate (PO4)0.03% max.Sulfate (SO4)0.05% max.Heavy Metals0.01% max.Iron (Fe)0.003% max.Loss on ignition15.34% max.Mo39.5% min. This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Aluminum Ammonium Sulfate Dodecahydrate, ACS, 98+%, 500g
Aluminum Ammonium Sulfate Dodecahydrate,ACS, 98+%, 500gFor Research & DevelopmentNot for drug, human, animal, or food useSpecifications:Appearance (Color) Colorless to whiteAppearance (Form) Powder, crystals, granulesAssay (by Complexometry) 98.0% – 102.0%Insoluble Matter <0.005%Chloride (Cl) <0.001%Calcium (Ca) <0.05%Heavy Metals (as Pb) <0.001%Iron (Fe) <0.001%Potassium (K) <0.05%Sodium (Na) <0.01%CAS: 7784-26-1FORMULA: AlNH4(SO4)2 · 12H2O This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.
Bismuth Trioxide, 99.9+%, 500g
Synonyms: Dibismuth trioxide, Bismuth(III) oxideCAS: 1304-76-3Molecular Formula: Bi2O3Molecular Weight: 465.96 g/molTestSpecificationAssay99.9% min.DescriptionYellow to light green powderLoss on Drying0.3% max.Chloride (Cl)10 ppm max.Nitrate (NO3)0.02% max.Chromium (Cr)50 ppm max.Aluminum (Al)10 ppm max.Arsenic (As)5 ppm max.Tin (Sn)50 ppm max.Sodium (Na)10 ppm max.Potassium (K)5 ppm max.Iron (Fe)20 ppm max.Copper (Cu)10 ppm max.Lead (Pb)5 ppm max.Calcium (Ca)10 ppm max.Cadmium (Cd)2 ppm max.Silver (Ag)5 ppm max.Lithium (Li)5 ppm max.Other Alkali Metals0.05% max.Acid Insoluble Residue0.05% max.
Phenolphthalein, ACS, 98+%, 500g
Phenolphthalein, ACS, 98+%, 500gFor Research & DevelopmentNot for drug, human, animal, or food useSpecifications:Appearance (Color) WhiteAppearance (Form) PowderAssay 98.0-101.0%Identification A & B PositiveMelting Point 260 °CAppearance of Solution – The solution is clear and not more intensely colored than reference solution Y7Related Substances <0.5%Heavy Metals <0.001%Acidity or Alkalinity – CompliesChlorides <0.01%Sulfates <0.02%Loss on Drying <0.5%Sulfated Ash <0.1%Microorganism: TPC <1000 cfu/gY & M <100 cfu/gE-coli – AbsentStaphylococcus Aureus – AbsentPseudomonas Aeruginosa – AbsentAlbicans Saccharomyces – AbsentCAS: 77-09-8FORMULA: C20H14O4 This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.