Millipore Sigma Vibrant Logo

102838 L-Cysteine

Overview

Replacement Information

Key Spec Table

CAS #Empirical Formula
52-90-4C₃H₇N O₂S

Pricing & Availability

Catalogue Number AvailabilityPackaging Qty/Pack Price Quantity
1028380025
Retrieving availability...
Limited Availability
Limited Availability
In Stock 
Discontinued
Limited Quantities Available
Availability to be confirmed
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      Plastic bottle 25 g
      Retrieving price...
      Price could not be retrieved
      Minimum Quantity is a multiple of
      Maximum Quantity is
      Upon Order Completion More Information
      You Saved ()
       
      Request Pricing
      1028380100
      Retrieving availability...
      Limited Availability
Limited Availability
      In Stock 
      Discontinued
      Limited Quantities Available
      Availability to be confirmed
        Remaining : Will advise
          Remaining : Will advise
          Will advise
          Contact Customer Service
          Contact Customer Service

          Plastic bottle 100 g
          Retrieving price...
          Price could not be retrieved
          Minimum Quantity is a multiple of
          Maximum Quantity is
          Upon Order Completion More Information
          You Saved ()
           
          Request Pricing
          1028381000
          Retrieving availability...
          Limited Availability
Limited Availability
          In Stock 
          Discontinued
          Limited Quantities Available
          Availability to be confirmed
            Remaining : Will advise
              Remaining : Will advise
              Will advise
              Contact Customer Service
              Contact Customer Service

              Plastic bottle 1 kg
              Retrieving price...
              Price could not be retrieved
              Minimum Quantity is a multiple of
              Maximum Quantity is
              Upon Order Completion More Information
              You Saved ()
               
              Request Pricing
              1028389010
              Retrieving availability...
              Limited Availability
Limited Availability
              In Stock 
              Discontinued
              Limited Quantities Available
              Availability to be confirmed
                Remaining : Will advise
                  Remaining : Will advise
                  Will advise
                  Contact Customer Service
                  Contact Customer Service

                  Plastic drum 10 kg
                  Retrieving price...
                  Price could not be retrieved
                  Minimum Quantity is a multiple of
                  Maximum Quantity is
                  Upon Order Completion More Information
                  You Saved ()
                   
                  Request Pricing
                  Description
                  Catalogue Number102838
                  Synonymsa-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid
                  References
                  Product Information
                  CAS number52-90-4
                  EC number200-158-2
                  Hill FormulaC₃H₇N O₂S
                  Molar Mass121.16 g/mol
                  HS Code2930 90 12
                  Structure formula ImageStructure formula Image
                  Quality LevelMQ100
                  Applications
                  ApplicationL-Cysteine for biochemistry. CAS 52-90-4, pH 4.5 - 5.5 (100 g/l, H₂O, 20 °C).
                  Biological Information
                  Physicochemical Information
                  Density1.66 g/cm3 (45 °C)
                  Ignition temperature420 °C
                  Melting Point>203 °C
                  pH value4.5 - 5.5 (100 g/l, H₂O, 20 °C)
                  Bulk density300 kg/m3
                  Solubility280 g/l
                  Dimensions
                  Materials Information
                  Toxicological Information
                  LD 50 oralLD50 Rat 1890 mg/kg
                  Safety Information according to GHS
                  RTECSHA1600000
                  Storage class10 - 13 Other liquids and solids
                  WGKWGK 1 slightly hazardous to water
                  Disposal3
                  Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
                  Safety Information
                  Categories of dangerharmful
                  Product Usage Statements
                  Storage and Shipping Information
                  StorageStore below +30°C.
                  Packaging Information
                  Transport Information
                  Supplemental Information
                  Specifications
                  Assay (perchloric acid titration, calculated on dried substance)≥ 99.0
                  Identity (IR-spectrum)passes test
                  Appearancecolorless to white, needle-shaped crystals
                  Appearance of solution (100 g/l, hydrochloric acid  2 mol/l)clear and colorless
                  Spec. rotation (α 20/D, 80 g/l, hydrochloric acid 1 mol/l, calc. on dried substance)+8.3 to +9.5
                  pH (25 g/l; CO₂-free water)4.5 - 5.5
                  Chloride (Cl)≤ 0.04 %
                  Sulfate (SO₄)≤ 0.03 %
                  Heavy metals (as Pb)≤ 0.001 %
                  As (Arsenic)≤ 0.0001 %
                  Ca (Calcium)≤ 0.001 %
                  Co (Cobalt)≤ 0.0005 %
                  Fe (Iron)≤ 0.001 %
                  K (Potassium)≤ 0.0005 %
                  Mg (Magnesium)≤ 0.0005 %
                  Na (Sodium)≤ 0.01 %
                  NH₄ (Ammonium)≤ 0.02 %
                  Zn (Zinc)≤ 0.0005 %
                  Foreign amino acids≤ 0.5 %
                  Other ninhydrine positive substances≤ 0.1 %
                  Loss on drying (105 °C; 3 h)≤ 0.5 %
                  Global Trade Item Number
                  Catalogue Number GTIN
                  1028380025 04022536037363
                  1028380100 04022536037370
                  1028381000 04022536037387
                  1028389010 04022536692678