ETHYL RED

CAS No.：76058-33-8

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.

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ETHYL RED Basic information

Product Name:	ETHYL RED
Synonyms:	DIETHYL RED;ETHYL RED;LABOTEST-BB LT00452774;2-[4-(DIETHYLAMINO)PHENYLAZO]BENZOIC ACID;4-(DIETHYLAMINO)AZOBENZENE-2'-CARBOXYLIC ACID;ETHYL RED 97%;Ethyl Red, pure;Ethyl Red [not Cyanin dyes]
CAS:	76058-33-8
MF:	C17H19N3O2
MW:	297.35
EINECS:	999-999-2
Product Categories:	Azo
Mol File:	76058-33-8.mol

ETHYL RED Chemical Properties

Melting point	135 °C
Boiling point	438.86°C (rough estimate)
density	1.0871 (rough estimate)
refractive index	1.6500 (estimate)
solubility	Solubility Almost insoluble in water; slightly soluble in ethanol, soluble in benzene
form	powder
pka	5.42(at 25℃)
color	Red
PH Range	Red (4.5) to yellow (6.5)
λmax	447nm
BRN	3366056
Major Application	Optical materials, photoresists, flexible electronic circuitry, adhesives, textiles, method for counting leukocytes, enzyme binding assays, DNA chips
CAS DataBase Reference	76058-33-8(CAS DataBase Reference)

Safety Information

Hazard Codes	Xn
Risk Statements	32-20/21
Safety Statements	22-24/25
HS Code	29270000

MSDS Information

Provider	Language
ACROS	English
ALFA	English

ETHYL RED Usage And Synthesis

Chemical Properties	dark red powder
Uses	Indicator: pH 4.5 (red) to pH 6.5 (yellow)
Purification Methods	Ethyl Red [2-(4-diethylaminophenylazo)benzoic acid] M 297.4, m 135o, 150-1 5 2o, pK1 2.5, pK2 9.5. Crystallise the acid dye from EtOH/diethyl ether or toluene. It is an indicator: pH 4.4 (red) and 6.2 (yellow). UV: max 447nm. [Beilstein 16 I 316.]

ETHYL RED Preparation Products And Raw materials

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