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Cresol Red

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产品编号

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Synonyms:

o-Cresolsulfonphthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(2-methylphenol) S,S-dioxide

CAS No.:

1733-12-6

数量

-

+

库存:

0



1

keyword:

Cresol Red

Description

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Chemical Name	Cresol Red
Another name	o-Cresolsulfonphthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis(2-methylphenol) S,S-dioxide
CAS No.	1733-12-6
Molecular formula	C₂₁H₁₈O₅S
EINECS No.	217-064-2
Molecular weight	382.43
Molecular Structure
Details	Appearance: brownish red crystal Assay: 80% min. Max Absorption wavelength, λ1(PH6.5): 432~436 nm λ2(PH8.5): 571~574 nm Mass absorption coefficient L/(cm·g) α1〔λ1(PH6.5)〕49-67 , α2〔λ2(PH8.5)〕100-132 Solubility in Ethanol: Pass Loss on drying: 0.2% max Residue on ignition (sulfate):3.0%max
Main Application	A sulfonylurea indicator, used as pH indicator.