Reagents, S

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  • Silicone oil, for oil baths, usable range from -40 to +200°C

    Alfa Aesar

    Synonym(s): Dimethyl polysiloxane CAS Number: 63148-62-9 Harmonized Tariff Code:  3910.00

  • Sodium Hydrogen Carbonate, ACS, 99.7-100.3%

    Alfa Aesar

    Synonym(s): Sodium bicarbonate CAS Number: 144-55-8 MDL: MFCD00003528 EINECS: 205-633-8 Formula: NaHCO3 Formula Weight: 84.01 Form: Granular Density: 2.159 Refractive Index: 1.500 Solubility: Soluble in water. Insoluble in…

  • Sodium borate, 0.5M buffer soln., pH 8.5

    Alfa Aesar

    CAS Number: 1330-43-4 Harmonized Tariff Code:  2810.00 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary Statements: P281-P201-P202-P308+P313-P405-P501a Use personal protective equipment as required. Obtain special instructions before use. Do not handle…

  • Starch, soluble

    Alfa Aesar

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

  • Sodium cyanide, granules, 98%

    Alfa Aesar

    Formula: CNNa Formula weight: 49.01 Purity: 98% CAS Number: 143-33-9 UN Number: UN1689 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2837.11 Hazard Statements: H300-H310-H330 Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. Precautionary…

  • 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…

  • Sucrose, 99%

    Alfa Aesar

    Synonym(s): D-(+)-Saccharose Formula: C12H22O11 Formula weight: 342.30 Purity: 99% CAS Number: 57-50-1 Harmonized Tariff Code:  1701.99

  • 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 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.…

  • Sodium Nitrate, ACS, 99.0% min

    Alfa Aesar

    Formula: NaNO3 Formula weight: 84.99 Purity: 99.0% min 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 hydroxide (low chloride), ACS, 97.0% min

    Alfa Aesar

    Formula: NaOH Formula weight: 40.00 Purity: 97.0% min CAS Number: 1310-73-2 UN Number: UN1823 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2815.11 Risk Phrases: 35 Causes severe burns. Safety Phrases: 26-37/39-45 In case of contact with eyes, rinse…

  • Silicon(IV) chloride, 99% (metals basis)

    Alfa Aesar

    Synonym(s): Silicon tetrachloride Formula: Cl4Si Formula weight: 169.90 Purity: 99% (metals basis) CAS Number: 10026-04-7 UN Number: UN1818 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2812.10 Hazard Statements: H314-H335-H319 Causes severe skin burns and…

  • Sodium pyruvate, 99%

    Alfa Aesar

    Synonym(s): Pyruvic acid sodium salt Formula: C3H3NaO3 Formula weight: 110.04 Purity: 99% CAS Number: 113-24-6 Harmonized Tariff Code:  2918.30

  • Sodium oxalate, 99%

    Alfa Aesar

    Synonym(s): Oxalic acid sodium salt Formula: Na2C2O4 Formula weight: 134.00 Purity: 99% CAS Number: 62-76-0 Packing Group: III Harmonized Tariff Code:  2917.11 Hazard Statements: H302-H312 Harmful if swallowed. Harmful in contact with skin. Precautionary Statements: …

  • Sodium, 99.95% (metals basis)

    Alfa Aesar

    Purity: 99.95% (metals basis) CAS Number: 7440-23-5 UN Number: UN1428 Hazard Class: 4.3 Packing Group: I Harmonized Tariff Code:  2805.11 Hazard Statements: H260-H314 In contact with water releases flammable gases which may ignite spontaneously. Causes severe skin burns and eye…

  • Sulfuric acid, 0.02N Standardized Solution

    Alfa Aesar

    Formula: H2SO4 Formula weight: 98.08 Harmonized Tariff Code:  2807.00

  • Sodium phosphate, 0.5M buffer soln., pH 7.0

    Alfa Aesar

    Harmonized Tariff Code:  2835.22

  • Sodium n-octyl sulfate, 99%

    Alfa Aesar

    Synonym(s): n-Octyl sulfate sodium salt Formula: CH3(CH2)7OSO3Na Formula weight: 232.28 Purity: 99% CAS Number: 142-31-4 Harmonized Tariff Code:  2920.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Sodium chloride, Puratronic r, 99.999% (metals basis)

    Alfa Aesar

    Formula: ClNa Formula weight: 58.44 Purity: 99.999% (metals basis) CAS Number: 7647-14-5 Harmonized Tariff Code:  2501.00

  • Silica gel desiccant, indicating, -6+16 mesh granules

    Alfa Aesar

    CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22 Hazard Statements: H350 May cause cancer. Precautionary Statements: P281-P201-P202-P308+P313-P405-P501a Use personal protective equipment as required. Obtain special instructions before use. Do not handle until all safety…

  • Sodium tetraborate decahydrate, 99+%

    Alfa Aesar

    Synonym(s): Borax, Sodium borate (tetra) decahydrate Formula: B4Na2O7 10H2O Formula weight: 381.37 (201.22anhy) Purity: 99+% CAS Number: 1303-96-4 Harmonized Tariff Code:  2840.19 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary Statements: …

  • Sodium citrate, 0.5M buffer soln., pH 6.0

    Alfa Aesar

    Harmonized Tariff Code:  2918.15 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…

  • Silicon(IV) bromide

    Alfa Aesar

    Synonym(s): Silicon tetrabromide Formula: SiBr4 Formula weight: 347.72 CAS Number: 7789-66-4 UN Number: UN3264 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2812.90 Hazard Statements: H314-H335-H319 Causes severe skin burns and eye damage. May cause…

  • Sulfur trioxide-pyridine complex, 98%, active SO3 ca 48-50%

    Alfa Aesar

    Synonym(s): Pyridine-sulfur trioxide complex Formula: C5H5NO3S Formula weight: 159.16 Purity: 98%, active SO3 ca 48-50% CAS Number: 26412-87-3 UN Number: UN3261 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2933.39 Hazard Statements: H301-H314-H318 Toxic if…

  • Sodium chloroacetate, 98%

    Alfa Aesar

    Synonym(s): Chloroacetic acid sodium salt Formula: C2H2ClNaO2 Formula weight: 116.48 Purity: 98% CAS Number: 3926-62-3 UN Number: UN2659 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2915.40 Hazard Statements: H301-H315 Toxic if swallowed. Causes skin…

  • S-Methylisothiouronium sulfate, 98+%

    Alfa Aesar

    Synonym(s): S-Methylisothiourea sulfate, 2-Methyl-2-thiopseudourea sulfate Formula: C4H12N4S2 H2SO4 Formula weight: 278.38 Purity: 98+% CAS Number: 867-44-7 Harmonized Tariff Code:  2930.90 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: …

  • Sodium phenylpyruvate monohydrate, 98%

    Alfa Aesar

    Synonym(s): Phenylpyruvic acid sodium salt monohydrate Formula: C9H7NaO3 H2O Formula weight: 204.16 (186.14anhy) Purity: 98% CAS Number: 122049-54-1 Harmonized Tariff Code:  2918.30

  • Salicylhydroxamic acid, 99%

    Alfa Aesar

    Synonym(s): 2-Hydroxybenzohydroxamic acid Formula: C7H7NO3 Formula weight: 153.14 Purity: 99% CAS Number: 89-73-6 Harmonized Tariff Code:  2928.00 Hazard Statements: H341-H315-H319-H335 Suspected of causing genetic defects. Causes skin irritation. Causes serious eye irritation.…

  • 3-Sulfolene, 98%

    Alfa Aesar

    Synonym(s): Butadiene sulfone, 2,5-Dihydrothiophene-1,1-dioxide Formula: C4H6O2S Formula weight: 118.15 Purity: 98% CAS Number: 77-79-2 Harmonized Tariff Code:  2934.99 Hazard Statements: H318 Causes serious eye damage. Precautionary Statements: P280-P305+P351+P338-P310 Wear…

  • Succinic anhydride, 99%

    Alfa Aesar

    Synonym(s): Butanedioic anhydride, Dihydro-2,5-furandione Formula: C4H4O3 Formula weight: 100.07 Purity: 99% CAS Number: 108-30-5 Harmonized Tariff Code:  2917.19 Hazard Statements: H302-H319-H335 Harmful if swallowed. Causes serious eye irritation. May cause respiratory…

  • (S)-(-)-Nicotine, 99%

    Alfa Aesar

    Formula: C10H14N2 Formula weight: 162.24 Purity: 99% CAS Number: 54-11-5 UN Number: UN1654 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2939.99 Hazard Statements: H301-H310 Toxic if swallowed. Fatal in contact with skin. Precautionary Statements: …

  • Silica gel 60, 0.019-0.037mm (400-600 mesh)

    Alfa Aesar

    CAS Number: 7631-86-9 Harmonized Tariff Code:  2811.22 Hazard Statements: H373 May cause damage to organs through prolonged or repeated exposure. Precautionary Statements: P260-P314-P501a Do not breathe dust/fume/gas/mist/vapours/spray. Get medical advice/attention if you feel unwell.…

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