Millipore Sigma Vibrant Logo

101322 Methyl orange (C.I. 13025)

indicator ACS,Reag. Ph Eur

Methyl orange (C.I. 13025) MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: 4-Dimethylaminoazobenzene-4'-sulfonic acid sodium salt, Gold orange, Helianthine, Orange III

CAS #: 547-58-0 EC Number: 208-925-3 Molar Mass: 327.34 g/mol Hill Formula: C₁₄H₁₄N₃NaO₃S Grade: ACS,Reag. Ph Eur
View Products on Sigmaaldrich.com
101322
View Pricing & Availability

Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaMolar MassGrade Value
547-58-0208-925-3C₁₄H₁₄N₃NaO₃S327.34 g/molACS,Reag. Ph Eur

Pricing & Availability

Catalogue Number AvailabilityPackaging Qty/Pack Price Quantity
1.01322.0025
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

      		 Glass 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
      		 —
      1.01322.0100
      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

          		 Glass 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
          		 —
          1.01322.1000
          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

              		 Metal can 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
              		 —
              Description
              Catalogue Number101322
              Synonyms4-Dimethylaminoazobenzene-4'-sulfonic acid sodium salt, Gold orange, Helianthine, Orange III
              References
              Product Information
              CAS number547-58-0
              EC number208-925-3
              GradeACS,Reag. Ph Eur
              Hill FormulaC₁₄H₁₄N₃NaO₃S
              Molar Mass327.34 g/mol
              HS Code2927 00 29
              Structure formula ImageStructure formula Image
              Quality LevelMQ200
              Applications
              Biological Information
              Physicochemical Information
              Melting Point>300 °C
              pH value6.5 (5 g/l, H₂O, 20 °C)
              Bulk density200 - 400 kg/m3
              Solubility5 g/l
              Dimensions
              Materials Information
              Toxicological Information
              LD 50 oralLD50 Rat 60 mg/kg
              Safety Information according to GHS
              Hazard Pictogram(s) Hazard Pictogram(s)
              Hazard Statement(s)H301: Toxic if swallowed.
              Precautionary Statement(s)P264: Wash skin thoroughly after handling.
              P270: Do not eat, drink or smoke when using this product.
              P301 + P310: IF SWALLOWED: Immediately call a POISON CENTER/doctor.
              P405: Store locked up.
              P501: Dispose of contents/ container to an approved waste disposal plant.
              Signal WordDanger
              Storage class6.1C Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
              WGKWGK 3 highly hazardous to water
              Disposal9
              Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
              Safety Information
              Categories of dangertoxic
              Product Usage Statements
              Storage and Shipping Information
              StorageStore at +2°C to +30°C.
              Packaging Information
              Transport Information
              Declaration (railroad and road) ADR, RIDUN 3143 , 6.1, III
              Declaration (transport by air) IATA-DGRUN 3143 , 6.1, III
              Declaration (transport by sea) IMDG-CodeUN 3143 , 6.1, III
              Supplemental Information
              Specifications
              Identity (UV/VIS-Spectrum)passes test
              Clarity of solution (1 g/l; water)passes test
              Transition rangepH 3.1 - pH 4.4 pink - orange yellow
              Absorption maximum λ 1 max. (buffer pH 3.1)501 - 505 nm
              Absorption maximum λ 2 max. (buffer pH 4.4)466 - 471 nm
              Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.01 g/l; buffer pH 3.1; calc. on dried substances) 1000 - 1150
              Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.01 g/l; buffer pH 4.4; calc. on dried substances)730 - 850
              Loss on drying (110 °C)≤ 5 %
              Transition range (according to ACS)passes test
              Sensitivity testpasses test
              Global Trade Item Number
              Catalogue Number GTIN
              1.01322.0025 04022536019369
              1.01322.0100 04022536019383
              1.01322.1000 04022536019390