1611-35-4

1611-35-4 - Names and Identifiers

Name	xylenol orange
Synonyms	xylenol orange Xylenol Orange disodium salt o-Cresolsulfonphthaleindi-(methyl-iminodiacetic acid) o-cresolsulphonephthalein-6,6-di(methylaminodiacetic acid) 2,2',2'',2'''-{(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis[(6-hydroxy-5-methylbenzene-3,1-diyl)methanediylnitrilo]}tetraacetic acid 2-[[5-[3-[3-[(bis(1-hydroperoxyvinyl)amino)methyl]-4-hydroxy-5-methyl-phenyl]-1,1-dioxo-benzo[c]oxathiol-3-yl]-2-hydroxy-3-methyl-phenyl]methyl-(carboxymethyl)amino]acetic acid
CAS	1611-35-4
EINECS	216-553-8
InChI	InChI=1/C31H32N2O13S/c1-17-9-23(11-21(29(17)38)13-32(15-27(34)35)16-28(36)37)31(25-7-5-6-8-26(25)47(42,43)46-31)24-10-18(2)30(39)22(12-24)14-33(19(3)44-40)20(4)45-41/h5-12,38-41H,3-4,13-16H2,1-2H3,(H,34,35)(H,36,37)

1611-35-4 - Physico-chemical Properties

Molecular Formula	C31H32N2O13S.xNa
Density	1.534g/cm³
Melting Point	222℃
Boling Point	919.3°C at 760 mmHg
Flash Point	509.8°C
Vapor Presure	0mmHg at 25°C
Storage Condition	RT, dark
Refractive Index	1.674
MDL	MFCD00044293
Use	Used as acid-base indicator and determination of bismuth, thorium, lead, cobalt, copper, iron, aluminum complexation indicator

1611-35-4 - Introduction

xylenol orange (also known as methyl orange) is an organic compound with the chemical formula C14H14N3NaO3S. It is an oxalate dye with an orange pigment.

xylenol orange is commonly used to stain biological tissues and cells, and is widely used in histology, cytology and immunohistochemistry. Because of its good staining effect and visibility, the dyed material can be clearly observed under a microscope.

The preparation method of xylenol orange mainly includes two steps: firstly, the azo compound is prepared by the condensation reaction of 2-methylaniline and ketone, and then it is reacted with sodium benzenesulfonate to obtain xylenol orange. The synthesis method is relatively simple and is often used in laboratory synthesis.

When using xylenol orange, you need to pay attention to its safety. xylenol orange is an organic dye that may have an irritating effect on the skin, eyes and respiratory tract. Therefore, appropriate personal protective equipment such as gloves, face shields and goggles should be worn during operation. In addition, it should not be exposed to outdoor sunlight for a long time to prevent it from fading. xylenol orange should also be kept away from combustibles and fire sources and stored in a dry, well-ventilated place.

Last Update：2024-04-10 22:29:15