Millipore Sigma Vibrant Logo
Attention: We have moved. Merck Millipore products are no longer available for purchase on MerckMillipore.com.Learn More

107241 Phenol red

indicator ACS

Phenol red MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.
CAS #: 143-74-8 EC Number: 205-609-7 Molar Mass: 354.38 g/mol Chemical Formula: (C₆H₄OH)₂C₇H₄SO₃ Hill Formula: C₁₉H₁₄O₅S Grade: ACS
107241
Purchase on Sigma-Aldrich

Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
143-74-8205-609-7C₁₉H₁₄O₅S(C₆H₄OH)₂C₇H₄SO₃354.38 g/molACS

Products

Catalogue NumberPackaging Qty/Pack
1072410005 Glass bottle 5 g
1072410100 Glass bottle 100 g
1072411000 Metal can 1 kg
Description
Catalogue Number107241
DescriptionPhenol red
References
Product Information
CAS number143-74-8
EC number205-609-7
GradeACS
Hill FormulaC₁₉H₁₄O₅S
Chemical formula(C₆H₄OH)₂C₇H₄SO₃
Molar Mass354.38 g/mol
HS Code2934 99 99
Structure formula ImageStructure formula Image
Quality LevelMQ200
Applications
Biological Information
Physicochemical Information
Melting Point>300 °C
Bulk density200 - 300 kg/m3
Solubility0.77 g/l
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H315: Causes skin irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s)P261: Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
P264: Wash skin thoroughly after handling.
P271: Use only outdoors or in a well-ventilated area.
P280: Wear protective gloves.
P302 + P352: IF ON SKIN: Wash with plenty of water.
P304 + P340 + P312: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell.
Signal WordWarning
RTECSSJ7490000
Storage class10 - 13 Other liquids and solids
WGKWGK 3 highly 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
Product Usage Statements
Storage and Shipping Information
StorageStore at +5°C to +30°C.
Packaging Information
Transport Information
Supplemental Information
Specifications
Identity (UV/VIS-Spectrum)passes test
Clarity of solution (1 g/l; ethanol)passes test
1st transition rangepH 1.2 - pH 3.0 brownish orange - yellow
2nd transition rangepH 6.5 - pH 8.0 brownish yellow - red violet
Absorption maximum λ 1 max. (buffer pH 1,2)503 - 506 nm
Absorption maximum λ 2 max. (buffer pH 3,0)430 - 435 nm
Absorption maximum λ 3 max. (buffer pH 6.5)430 - 435 nm
Absorption maximum λ 4 max. (buffer pH 8,0)557 - 560 nm
Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.005 g/l; buffer pH 1,2; calc. on dried substances)900 - 1150
Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.005 g/l; buffer pH 3,0; calc. on dried substances)550 - 650
Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.005 g/l; buffer pH 6.5; calc. on dried substances)550 - 650
Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.005 g/l; buffer pH 8,0; calc. on dried substances)1000 - 1250
Loss on drying (110 °C)≤ 1
Transition range (according to ACS)pH 5,8 - pH 8,2 yellow - red
Global Trade Item Number
Catalogue Number GTIN
1072410005 04022536088822
1072410100 04022536088846
1072411000 04022536088853