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  • Stearic acid, 98%

    Alfa Aesar

    Synonym(s): Octadecanoic acid Formula: CH3(CH2)16CO2H Formula weight: 284.48 Purity: 98% CAS Number: 57-11-4 Harmonized Tariff Code:  2915.70 Risk Phrases: 36/37/38 Irritating to eyes, respiratory system and skin. Safety Phrases: 26-37 In case of contact with eyes, rinse…

  • Sodium hydrogen phosphate, anhydrous, ACS, 99.0% min

    Alfa Aesar

    Synonym(s): Disodium phosphate, Sodium phosphate, dibasic Formula: HNa2O4P Formula weight: 141.98 Purity: 99.0% min CAS Number: 7558-79-4 Harmonized Tariff Code:  2835.22 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Sodium tetraethylborate, 98%

    Alfa Aesar

    Formula: C8H20BNa Formula weight: 150.05 Purity: 98% CAS Number: 15523-24-7 UN Number: UN3393 Hazard Class: 4.2 Packing Group: I Harmonized Tariff Code:  2931.90 Hazard Statements: H250-H260-H252 Catches fire spontaneously if exposed to air. In contact with water releases…

  • Sodium fluoride, 99%

    Alfa Aesar

    Formula: FNa Formula weight: 41.99 Purity: 99% CAS Number: 7681-49-4 UN Number: UN1690 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2826.19 Hazard Statements: H301-H315-H319 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. …

  • Starch, soluble

    Alfa Aesar

    CAS Number: 9005-84-9 Harmonized Tariff Code:  3505.10

  • Sodium tetraborate, anhydrous, 99.5% (metals basis)

    Alfa Aesar

    Synonym(s): Borax, anhydrous, Sodium borate (tetra) Formula: B4Na2O7 Formula weight: 201.22 Purity: 99.5% (metals basis) CAS Number: 1330-43-4 Harmonized Tariff Code:  2840.11 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary Statements: …

  • Spermine tetrahydrochloride, 99%

    Alfa Aesar

    Synonym(s): N,N'-Bis(3-aminopropyl)-1,4-butanediamine tetrahydrochloride Formula: C10H26N4 4HCl Formula weight: 348.19 Purity: 99% CAS Number: 306-67-2 Harmonized Tariff Code:  2921.29 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May…

  • Sodium dihydrogen phosphate monohydrate, ACS, 98.0-102.0%

    Alfa Aesar

    Synonym(s): Monosodium orthophosphate, Sodium phosphate, monobasic Formula: NaH2PO4 H2O Formula weight: 137.99 (119.98anhy) Purity: 98.0-102.0% CAS Number: 10049-21-5 Harmonized Tariff Code:  2835.22 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye…

  • Sodium sticks, in mineral oil, 99%

    Alfa Aesar

    Purity: 99% CAS Number: 7440-23-5 UN Number: UN1428 Hazard Class: 4.3 Packing Group: I Harmonized Tariff Code:  2805.11 Hazard Statements: H260-H314-H318 In contact with water releases flammable gases which may ignite spontaneously. Causes severe skin burns and eye damage.…

  • Sodium thiocyanate, 96%

    Alfa Aesar

    Synonym(s): Sodium rhodanide Formula: NaSCN Formula weight: 81.07 Purity: 96% CAS Number: 540-72-7 Harmonized Tariff Code:  2842.90 Hazard Statements: H302-H312-H332 Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled. Precautionary Statements: …

  • Soda Lime, ACS

    Alfa Aesar

    Synonym(s): Sodium hydroxide with lime CAS Number: 8006-28-8 UN Number: UN1907 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2825.90 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. Precautionary Statements: …

  • Silica gel desiccant, -3+8 Mesh Granules

    Alfa Aesar

    CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22

  • Silicon(IV) oxide, 99.99% (metals basis)

    Alfa Aesar

    Formula: SiO2 Formula weight: 60.09 Purity: 99.99% (metals basis) CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22

  • Stem-Cell Factor/c-Kit Inhibitor

    Alfa Aesar

    Synonym(s): SCF/c-Kit Signaling Inhibitor, ISCK03 Formula: C19H21N3O2S Formula weight: 355.50 CAS Number: 945526-43-2 Harmonized Tariff Code:  2935.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Sodium borohydride, 98% min

    Alfa Aesar

    Synonym(s): Sodium tetrahydridoborate Formula: BH4Na Formula weight: 37.83 Purity: 98% min CAS Number: 16940-66-2 UN Number: UN1426 Hazard Class: 4.3 Packing Group: I Harmonized Tariff Code:  2850.00 Hazard Statements: H301-H311-H331-H314-H318-H261 Toxic if swallowed.…

  • Stearic acid hydrazide, 97%

    Alfa Aesar

    Synonym(s): Octadecanoic hydrazide Formula: CH3(CH2)16CONHNH2 Formula weight: 298.51 Purity: 97% CAS Number: 4130-54-5 Harmonized Tariff Code:  2928.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Sodium hydrogen carbonate, 99%

    Alfa Aesar

    Synonym(s): Sodium bicarbonate Formula: NaHCO3 Formula weight: 84.01 Purity: 99% CAS Number: 144-55-8 Harmonized Tariff Code:  2836.30

  • Sodium nitrate, 98+%

    Alfa Aesar

    Formula: NaNO3 Formula weight: 84.99 Purity: 98+% CAS Number: 7631-99-4 UN Number: UN1498 Hazard Class: 5.1 Packing Group: III Harmonized Tariff Code:  3102.50 Hazard Statements: H272-H302 May intensify fire; oxidizer. Harmful if swallowed. Precautionary Statements: …

  • Sodium iodate, 99% min

    Alfa Aesar

    Formula: NaIO3 Formula weight: 197.89 Purity: 99% min CAS Number: 7681-55-2 UN Number: UN1479 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2829.90 Hazard Statements: H272-H301-H334-H317 May intensify fire; oxidizer. Toxic if swallowed. May cause allergy or…

  • Sodium n-dodecyl sulfate, ultrapure, 99%

    Alfa Aesar

    Synonym(s): n-Dodecyl sulfate sodium salt, Sodium lauryl sulfate Formula: C12H25NaO4S Formula weight: 288.38 Purity: 99% CAS Number: 151-21-3 UN Number: UN2926 Hazard Class: 4.1 Packing Group: II Harmonized Tariff Code:  2920.90 Hazard Statements: …

  • Sodium tetraborate decahydrate, ACS, 99.5-105.0%

    Alfa Aesar

    Synonym(s): Borax, Sodium borate (tetra) decahydrate Formula: B4Na2O7 10H2O Formula weight: 381.37 (201.22anhy) Purity: 99.5-105.0% CAS Number: 1303-96-4 Harmonized Tariff Code:  2840.19 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary…

  • Sodium taurocholate hydrate, 97%

    Alfa Aesar

    Synonym(s): Taurocholic acid sodium salt Formula: C26H44NNaO7S xH2O Formula weight: 537.73(anhy) Purity: 97% CAS Number: 145-42-6 Harmonized Tariff Code:  2924.29 Safety Phrases: 24/25 Avoid contact with skin and eyes.

  • Silver iodide, Premion r, 99.999% (metals basis)

    Alfa Aesar

    Formula: AgI Formula weight: 234.77 Purity: 99.999% (metals basis) CAS Number: 7783-96-2 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2843.29 Risk Phrases: 50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the…

  • Stains-All, 96%

    Alfa Aesar

    Synonym(s): 1-Ethyl-2-[(E)-3-(1-ethylnaphtho[1,2-d]thiazolin-2-ylidene)-2-methylpropenyl]naphtho[1,2-d]thiazolium bromide, 3,3'-Diethyl-9-methyl-4,5,4',5'-dibenzothiacarbocyanine Formula: C30H27BrN2S2 Formula weight: 559.58 Purity: 96% CAS Number: 7423-31-6 Harmonized Tariff Code:  …

  • Sodium thiosulfate, 0.1N Standardized Solution

    Alfa Aesar

    Formula: Na2O3S2 Formula weight: 158.10 CAS Number: 7772-98-7 Harmonized Tariff Code:  2832.30

  • Stainless Steel gauze, 20 mesh woven from 0.102mm (0.004in) dia wire, Type 316

    Alfa Aesar

    Formula: Fe Cr Ni Mo 67.5 17 13 2.5 wt Harmonized Tariff Code:  7314.14 Risk Phrases: 40-43 Possible risk of irreversible effects. May cause sensitisation by skin contact. Safety Phrases: 36/37 Wear suitable protective clothing and gloves.

  • Sodium chloride, 0.1N Standardized Solution

    Alfa Aesar

    Formula: NaCl Formula weight: 58.44 CAS Number: 7647-14-5 Harmonized Tariff Code:  2501.00

  • Sodium tripolyphosphate

    Alfa Aesar

    Synonym(s): Sodium phosphate, Sodium triphosphate Formula: Na5P3O10 Formula weight: 367.91 CAS Number: 7758-29-4 Harmonized Tariff Code:  2835.31 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Silica gel desiccant, -6+12 mesh granules

    Alfa Aesar

    CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22

  • Silver chloride, 95%

    Alfa Aesar

    Formula: AgCl Formula weight: 143.32 Purity: 95% CAS Number: 7783-90-6 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2843.29 Hazard Statements: H290 May be corrosive to metals. Precautionary Statements: P234-P390-P406 Keep only in…

  • Sodium metatungstate monohydrate

    Alfa Aesar

    Synonym(s): Sodium tungstate (meta), Sodium polytungstate Formula: Na6O39W12 H2O Formula weight: 2986.13 (2968.12anhy) CAS Number: 12141-67-2 Harmonized Tariff Code:  2841.80 Hazard Statements: H318-H302 Causes serious eye damage. Harmful if swallowed. Precautionary Statements: …

  • Sodium 1-heptanesulfonate monohydrate, 99%

    Alfa Aesar

    Synonym(s): 1-Heptanesulfonic acid sodium salt monohydrate Formula: C7H15NaO3S H2O Formula weight: 220.26 (202.24anhy) Purity: 99% CAS Number: 207300-90-1 Harmonized Tariff Code:  2904.10

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