Acid Orange 7

Modify Date: 2025-08-20 19:02:41

Acid Orange 7 structure	Common Name	Acid Orange 7
	CAS Number	633-96-5	Molecular Weight	350.324
	Density	N/A	Boiling Point	N/A
	Molecular Formula	C₁₆H₁₁N₂NaO₄S	Melting Point	164°C
	MSDS	Chinese USA	Flash Point	N/A
	Symbol	GHS07	Signal Word	Warning

Use of Acid Orange 7

Acid orange 7 (Orange II), an azo dye, is an indicator pollutant. Acid orange 7 appears in manufacturing wastewater disposed of from the textile, food, and cosmetic industries[1][2].

Name	Acid Orange 7
Synonym	More Synonyms

Description	Acid orange 7 (Orange II), an azo dye, is an indicator pollutant. Acid orange 7 appears in manufacturing wastewater disposed of from the textile, food, and cosmetic industries[1][2].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Fang Zhang, et al. Decolorization of Acid Orange 7 by extreme-thermophilic mixed culture. Bioresour Technol. 2019 Nov;291:121875. [2]. Mohamad Ghalebizade, et al. Acid Orange 7 treatment and fate by electro-peroxone process using novel electrode arrangement. Chemosphere. 2019 Nov;235:1007-1014.

Description

Acid orange 7 (Orange II), an azo dye, is an indicator pollutant. Acid orange 7 appears in manufacturing wastewater disposed of from the textile, food, and cosmetic industries[1][2].

Related Catalog

Research Areas >> Others

Signaling Pathways >> Others >> Others

References

[1]. Fang Zhang, et al. Decolorization of Acid Orange 7 by extreme-thermophilic mixed culture. Bioresour Technol. 2019 Nov;291:121875.

[2]. Mohamad Ghalebizade, et al. Acid Orange 7 treatment and fate by electro-peroxone process using novel electrode arrangement. Chemosphere. 2019 Nov;235:1007-1014.

Melting Point	164°C
Molecular Formula	C₁₆H₁₁N₂NaO₄S
Molecular Weight	350.324
Exact Mass	350.033722
PSA	110.53000
LogP	4.94570
Water Solubility	116 g/L (30 ºC)

Acid Orange 7 MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DB7084000

CHEMICAL NAME :: Benzenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-, monosodium salt

CAS REGISTRY NUMBER :: 633-96-5

LAST UPDATED :: 199710

DATA ITEMS CITED :: 10

MOLECULAR FORMULA :: C16-H12-N2-O4-S.Na

MOLECULAR WEIGHT :: 351.35

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 150 gm/kg/43W-C

TOXIC EFFECTS :: Liver - other changes Blood - pigmented or nucleated red blood cells Blood - changes in erythrocyte (RBC) count

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 240 mg/kg/3D-I

TOXIC EFFECTS :: Liver - other changes Biochemical - Metabolism (Intermediary) - lipids including transport

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 150 gm/kg

SEX/DURATION :: male 43 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intratesticular

DOSE :: 10 mg/kg

SEX/DURATION :: male 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - testes, epididymis, sperm duct

MUTATION DATA

TYPE OF TEST :: Mutation in mammalian somatic cells

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 12 nmol/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 249,265,1991 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1433 No. of Facilities: 4422 (estimated) No. of Industries: 42 No. of Occupations: 44 No. of Employees: 43457 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1433 No. of Facilities: 3061 (estimated) No. of Industries: 22 No. of Occupations: 31 No. of Employees: 38768 (estimated) No. of Female Employees: 14382 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant
Risk Phrases	R36/37/38
Safety Phrases	S26-S36-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	DB7084000
HS Code	3204120000

2-Naphthol

CAS#:135-19-3

Sulfanilic acid

CAS#:121-57-3

~24%

Acid Orange 7

CAS#:633-96-5

Literature: Noroozi-Pesyan, Nader; Khalafy, Jabbar; Malekpoor, Zahra Journal of the Chinese Chemical Society, 2009 , vol. 56, # 5 p. 1018 - 1027

Precursor 2
CAS#:135-19-3 2-Naphthol CAS#:121-57-3 Sulfanilic acid
DownStream 10
CAS#:83-72-7 2-Hydroxy-1,4-n... CAS#:121-57-3 Sulfanilic acid CAS#:305-80-6 P-DIAZOBENZENES... CAS#:605-37-8 2, 3-Dihydroxy-...
CAS#:2834-92-6 1-Amino-2-naphthol CAS#:98-67-9 4-phenolsulfoni... CAS#:524-42-5 1,2-NAPHTHOQUINONE CAS#:116-63-2 1-Amino-2-napht...
CAS#:1198-27-2 1-amino-2-napht... CAS#:5460-35-5 1,2-Naphthalene...

HS Code	3204120000

Probing the radical chemistry in UV/persulfate-based saline wastewater treatment: kinetics modeling and byproducts identification.

Chemosphere 109 , 106-12, (2014)

The effect of Cl(-) on the oxidative degradation of Acid Orange 7 (AO7) was investigated in UV/S2O8(2-) system to elucidate the chlorination pathways in saline wastewaters. Lower amount of Cl(-) as we...

Analysis and testing of biological stains--the Biological Stain Commission Procedures.

Biotech. Histochem. 77(5&6) , 237-275, (2002)

Operational factors affecting the bioregeneration of mono-amine modified silica loaded with Acid Orange 7.

Water Res. 46(19) , 6419-29, (2012)

In this study, the operational factors affecting the bioregeneration of AO7-loaded MAMS particles in batch system, namely redox condition, initial acclimated biomass concentration, shaking speed and t...

orangeyz

Orange 7

Sodium 4-[(2-hydroxy-1-naphthyl)diazenyl]benzenesulfonate

orangeiic

sodium 4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate

4-[(2-hydroxy-1-naphthyl)azo]benzenesulfonic acid,sodium salt

Benzenesulfonic acid, 4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)

ORANGE 4

ORANGE1

Acid Orange

tropaeolin ooo

orangeya

EINECS 211-199-0

MFCD00021510

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China
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China
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Acid Orange 7

Use of Acid Orange 7

Names

Acid Orange 7 Biological Activity

Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Safety Information

Synthetic Route

Precursor & DownStream

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