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2610-11-9

2610-11-9 structure
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: 2024-01-02 12:02:37
  • 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
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.

Melting Point 240ºC
Molecular Formula C29H19N5Na2O8S2
Molecular Weight 675.59900
Exact Mass 675.04700
PSA 229.93000
LogP 8.67130

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QK1370000
CHEMICAL NAME :
2-Naphthalenesulfonic acid, 7-(benzoylamino)-4-hydroxy-3-((4-((4-sulfophenyl)azo) phenyl)azo)-,disodium salt
CAS REGISTRY NUMBER :
2610-11-9
LAST UPDATED :
199710
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C29-H19-N5-O8-S2.2Na
MOLECULAR WEIGHT :
675.63

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1048 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TEST SYSTEM :
Rodent - mouse
DOSE/DURATION :
91250 ug/kg/24H (Intermittent)
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