2610-11-9

2610-11-9 structure

Name: Direct Red 81
Chemical Name: chlorantine fast red 5b
CAS Number: 2610-11-9
Molecular Formula: C₂₉H₁₉N₅Na₂O₈S₂
Molecular Weight: 675.59900
Catalog: Dyes and pigments dye Direct dye
Create Date: 2018-02-26 08:00:00
Modify Date: 2025-09-09 12:41:36
Direct Red 81 is a diazo dye with a very high water solubility. The dye adsorption efficiency of Direct Red 81 is increased by increasing the adsorbent dose and adsorption time[1].

Name	chlorantine fast red 5b
Synonyms	disodium 7-benzamido-4-hydroxy-3-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulfonate SOLARREDBA MFCD00003949 7-Benzoylamino-4-hydroxy-3-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalin-2-sulfonsaeure,Dinatrium-Salz saturnredb Chlorantinlichtrot-5BL Chlorantine Fast Red 5B Red 4BL siriusred4b 7-benzoylamino-4-hydroxy-3-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalene-2-sulfonic acid,disodium-salt C. I. Direct Red 81 DURAZOL RED solarredb Direct Red 81 EINECS 220-028-9 helionred8b SiruisRed4B

Description	Direct Red 81 is a diazo dye with a very high water solubility. The dye adsorption efficiency of Direct Red 81 is increased by increasing the adsorbent dose and adsorption time[1].
Related Catalog	Signaling Pathways >> Others >> Others
References	[1]. Dehghani M, et al. Direct red 81 adsorption on iron filings from aqueous solutions; kinetic and isotherm studies. Environ Technol. 2019 May;40(13):1705-1713.

CHEMICAL NAME :: 2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo) phenyl)azo)-,disodium salt

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TOLED5 Toxicology Letters. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1977- Volume(issue)/page/year: 40,183,1988 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M2171 No. of Facilities: 99 (estimated) No. of Industries: 5 No. of Occupations: 12 No. of Employees: 1931 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M2171 No. of Facilities: 369 (estimated) No. of Industries: 9 No. of Occupations: 6 No. of Employees: 5247 (estimated) No. of Female Employees: 544 (estimated)

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Safety Phrases	S22;S24/25
RIDADR	NONH for all modes of transport
RTECS	QK1370000