Cas no 62625-32-5 (Bromocresol Green Sodium Salt)

Bromocresol Green Sodium Salt is a water-soluble dye commonly used as a pH indicator in analytical chemistry. It exhibits a transition range of pH 3.8 to 5.4, changing from yellow to blue, making it valuable for titrations and biological assays. The sodium salt form enhances solubility in aqueous solutions, ensuring consistent performance in buffer systems and diagnostic applications. Its high purity and stability make it suitable for precise laboratory work, including microbiology and clinical testing. The compound is also utilized in educational settings for demonstrating pH-dependent color changes. Proper handling and storage are recommended to maintain its integrity and shelf life.
Bromocresol Green Sodium Salt structure
Bromocresol Green Sodium Salt structure
Product Name:Bromocresol Green Sodium Salt
CAS No:62625-32-5
MF:C21H15Br4NaO5S
MW:722.011573076248
MDL:MFCD00148898
CID:57905
PubChem ID:24891573
Update Time:2025-06-08

Bromocresol Green Sodium Salt Chemical and Physical Properties

Names and Identifiers

    • Bromocresol Green
    • Sodium 2-[(Z)-(3,5-dibromo-4-hydroxy-2-methylphenyl)-(3,5-dibromo-2-methyl-4-oxo-1-cyclohexa-2,5-dienylidene)methyl]benzenesulfonate
    • Bromocresol green sodium salt
    • BROMOCRESOL GREEN SODIUM SALT AR
    • 3',3'',5',5''-tetrabromo-m-cresolsulphonephthalein sodium salt
    • ACS
    • BenziMidazole
    • BROMCRESOL GREEN
    • BROMCRESOL GREEN SODIUM
    • BROMCRESOL GREEN,SODIUM SALT
    • BROMOCRESOL BLUE SODIUM SALT
    • BROMOCRESOL BLUE WATER SOLUBLE
    • BromocresolGreenIndicatorGr
    • ide,monosodiumsalt
    • Indicator
    • SODIUM BROMOCRESOL GREEN
    • 3′,3″,5′,5″-Tetrabromo-m-cresolsulfonphthalein sodium salt
    • Bromocresol Green, water soluble
    • DSSTox_RID_80409
    • DSSTox_CID_24704
    • DSSTox_GSID_44704
    • Tox21_301436
    • S0041
    • sodium 2-[(3,5-dibromo-4-hydroxy-2-methylphenyl)-(3,5-dibromo-2-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
    • BROMCRESOL GREEN, SODIUM SALT
    • BROMCRESOL GREEN SODIUM SALT, WATER SOLUBLE
    • 3',3'',5',5''-TETRABROMO-M-CRESOLSULFONEPHTHALEIN SODIUM SALT
    • Bromocresol Green Sodium
    • CAS-62625-32-5
    • 62625-32-5
    • J-610050
    • DTXCID1024704
    • sodium;2-[(Z)-(3,5-dibromo-4-hydroxy-2-methylphenyl)-(3,5-dibromo-2-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
    • B-7900
    • NCGC00256010-01
    • BROMCRESOL GREEN SODIUM SALT [MI]
    • AKOS024364979
    • sodium;2-[(E)-(3,5-dibromo-4-hydroxy-2-methylphenyl)-(3,5-dibromo-2-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
    • Q27291114
    • Bromocresol Green Sodium Salt
    • MDL: MFCD00148898
    • Inchi: 1S/C21H14Br4O5S.Na.H/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)30-31(21,28)29;;/h3-8,26-27H,1-2H3;;
    • InChI Key: GEPHDWXPELBLRG-UHFFFAOYSA-N
    • SMILES: O=S1(OC2C=CC=CC=2C1(C1C=C(Br)C(O)=C(Br)C=1C)C1C=C(Br)C(O)=C(Br)C=1C)=O.[NaH]

Computed Properties

  • Exact Mass: 715.71100
  • Monoisotopic Mass: 715.711
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 5
  • Heavy Atom Count: 32
  • Rotatable Bond Count: 3
  • Complexity: 956
  • Covalently-Bonded Unit Count: 2
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 1
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Topological Polar Surface Area: 103

Experimental Properties

  • Color/Form: Brown Lens powder.
  • Density: 0.981?g/mL?at 25?°C
  • Melting Point: 230?°C (dec.) (lit.)
  • Boiling Point: 100℃
  • Solubility: H2O: soluble1mg/mL
  • Water Partition Coefficient: Soluble in water and ethanol.
  • Stability/Shelf Life: Stable. Incompatible with strong oxidizing agents.
  • PSA: 95.04000
  • LogP: 8.29440
  • pka: 4.7(at 25℃)
  • λmax: 617nm, 400nm
  • PH: 4(Yellow)-5.6(Blue)
  • Color/Form: 0.04?wt. % in H2O
  • Solubility: Soluble in water.

Bromocresol Green Sodium Salt Security Information

Bromocresol Green Sodium Salt Customs Data

  • HS CODE:2934 99 90

Bromocresol Green Sodium Salt Pricemore >>

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Additional information on Bromocresol Green Sodium Salt

Professional Introduction to Bromocresol Green Sodium Salt (CAS No: 62625-32-5)

Bromocresol Green Sodium Salt, with the chemical identifier CAS No 62625-32-5, is a widely recognized pH indicator renowned for its distinct color transitions across a specific pH range. This compound, a sodium salt derivative of bromocresol green, has garnered significant attention in various scientific and industrial applications due to its exceptional sensitivity and reliability in acid-base titrations. The compound's molecular structure, characterized by a substituted phenol group and a brominated cresol core, contributes to its stability and effectiveness as an indicator.

The primary utility of Bromocresol Green Sodium Salt lies in its ability to exhibit a clear and abrupt color change from blue in alkaline solutions to green in neutral solutions, and finally to yellow in acidic conditions. This characteristic makes it an invaluable tool in analytical chemistry, particularly in laboratory settings where precise pH determination is crucial. The compound's sharp endpoint detection capability enhances the accuracy of titration processes, ensuring reliable results in both research and industrial quality control.

In recent years, advancements in biochemical research have highlighted the potential of Bromocresol Green Sodium Salt beyond traditional pH indicators. Studies have demonstrated its applicability in enzyme kinetics and cellular pH monitoring, where its high sensitivity allows for real-time tracking of pH fluctuations within biological systems. This has opened new avenues for researchers investigating cellular metabolism and acid-base homeostasis, contributing to a deeper understanding of physiological processes at the molecular level.

The compound's chemical properties also make it suitable for use in environmental monitoring applications. For instance, its ability to detect subtle changes in water pH has been leveraged in assessing the impact of industrial discharges on aquatic ecosystems. By providing a rapid and visual indication of pH shifts, Bromocresol Green Sodium Salt aids environmental scientists in formulating effective remediation strategies and ensuring compliance with regulatory standards.

From an industrial perspective, the versatility of Bromocresol Green Sodium Salt extends to the food and beverage industry, where it serves as a quality control agent in monitoring fermentation processes and ensuring product consistency. Its compatibility with various solvents and media further enhances its practicality in industrial applications, making it a preferred choice for manufacturers seeking reliable pH measurement solutions.

The synthesis and purification of Bromocresol Green Sodium Salt (CAS No: 62625-32-5) adhere to stringent chemical manufacturing protocols to ensure high purity and performance. The process typically involves the reaction of cresol derivatives with bromine followed by sodium salt formation, resulting in a compound that maintains its indicator properties over multiple cycles of use. This robustness underscores its reliability across diverse applications.

Recent research has also explored the role of Bromocresol Green Sodium Salt in developing novel analytical methodologies. Its integration into spectroscopic techniques has enabled more sophisticated pH measurements with enhanced resolution. This innovation has implications for fields such as pharmaceutical development, where precise pH control is critical during drug formulation and stability testing.

The safety profile of Bromocresol Green Sodium Salt is another area of interest. While it is not classified as hazardous under standard conditions, proper handling protocols are recommended to prevent unintended exposure. Its non-toxic nature makes it suitable for educational purposes as well, allowing students to engage with practical chemistry without significant health risks.

In conclusion, the multifaceted applications of Bromocresol Green Sodium Salt underscore its importance as a versatile pH indicator. From academic research to industrial quality control and environmental monitoring, this compound continues to play a pivotal role in advancing scientific understanding and technological innovation. Its continued relevance is further solidified by ongoing research into new methodologies that leverage its unique properties.

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