CAS 1611-35-4

Xylenol Orange

Description:

Xylenol Orange, with the CAS number 1611-35-4, is an organic compound commonly used as a pH indicator and a complexometric indicator in analytical chemistry. It is a member of the azo dye family and is characterized by its vibrant orange color, which changes to yellow at lower pH levels. The compound is soluble in water and exhibits a distinct colorimetric response, making it useful for titrations and other quantitative analyses. Xylenol Orange has a molecular formula that reflects its structure, which includes multiple aromatic rings and functional groups that contribute to its color-changing properties. It is often employed in the determination of metal ions, particularly in the presence of other complexing agents. Additionally, Xylenol Orange is known for its stability under various conditions, although it can be sensitive to light and extreme pH levels. Safety precautions should be taken when handling this compound, as it may pose health risks if ingested or inhaled.

Formula: C₃₁H₃₂N₂O₁₃S

InChI: InChI=1S/C31H32N2O13S/c1-17-7-21(9-19(29(17)42)11-32(13-25(34)35)14-26(36)37)31(23-5-3-4-6-24(23)47(44,45)46-31)22-8-18(2)30(43)20(10-22)12-33(15-27(38)39)16-28(40)41/h3-10,42-43H,11-16H2,1-2H3,(H,34,35)(H,36,37)(H,38,39)(H,40,41)

InChI key: InChIKey=ORZHVTYKPFFVMG-UHFFFAOYSA-N

SMILES: O=S1(=O)OC(C=2C1=CC=CC2)(C3=CC(CN(CC(O)=O)CC(O)=O)=C(O)C(C)=C3)C4=CC(CN(CC(O)=O)CC(O)=O)=C(O)C(C)=C4

Synonyms:

• 3H-2,1-Benzoxathiole, glycine deriv.
• Acetic acid, [(α-hydroxy-o-sulfobenzylidene)bis[(6-hydroxy-5-methyl-m-phenylene)methylenenitrilo]]tetra-, γ-sultone
• Acetic acid, [3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-m-phenylene)methylenenitrilo]]tetra-, S,S-dioxide
• Cresol Phthalexon S
• Cresol Red DA
• Glycine, N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-, S,S-dioxide
• N,N'-[3H-2,1-Benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)glycine] S,S-dioxide
• N,N′-[(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)glycine]
• Naranja De Xilenol
• Nsc 324982
• Orange De Xylenol
• Phenolsulfonephthalein, 3',3''-bis[[bis(carboxymethyl)amino]methyl]-5',5''-dimethyl-
• Phenolsulfonephthalein, 3′,3′′-bis[[bis(carboxymethyl)amino]methyl]-5′,5′′-dimethyl-
• S,S-Dioxyde de N,N-{3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]}bis[N-(carboxymethyl)glycine]
• Xylenol Orange
• Xylenolorange
• o-Cresolphthalexon S

Xylenol Orange

CAS: 1202864-39-8, 1611-35-4

Formula: C₃₁H₃₀N₂Na₂O₁₃S

Color and Shape: Orange to Brown to Dark red powder to crystal

Molecular weight: 716.62

Ref: 3B-B0477

Xylenol orange

CAS: 1611-35-4

Purity: 95%

Molecular weight: 672.6599731

Ref: 10-F842427

N,N'-[(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)glycine]

CAS: 1611-35-4

Formula: C₃₁H₃₂N₂O₁₃S

Color and Shape: Solid

Molecular weight: 672.6564

Ref: IN-DA00ILLI

Xylenol Orange disodium salt

CAS: 1611-35-4

Xylenol Orange disodium salt

Purity: IND

Color and Shape: Powder

Molecular weight: 716.62g/mol

Ref: 54-BIX1004

Xylenol orange

CAS: 1611-35-4

Xylenol orange is a dye used as a pH indicator. It is typically present as the monosodium salt of xylenol and has an optimum concentration of 0.2-0.5 mg/L. Xylenol orange is highly soluble in water and can be used in aqueous solutions, but it should not be used with strong acids or alkalis, as they will cause the dye to precipitate out of solution. Xylenol orange reacts with acidic substances and changes colour from orange to yellow at pH 7.0 or higher. The mechanism behind this reaction involves the deprotonation of xylenol by acid, followed by protonation of the conjugate base, which then undergoes electrophilic substitution by hydroxide ions (OH−). This reaction is shown below: XO+H+→XO−+H+ XO−+OH−→HO−+X The Langmuir

Formula: C₃₁H₃₂N₂O₁₃S

Purity: Min. 95%

Molecular weight: 672.66 g/mol

Ref: 3D-FX01508