C.I. Solvent Orange 2

Modify Date: 2025-08-24 10:10:59

C.I. Solvent Orange 2 structure	Common Name	C.I. Solvent Orange 2
	CAS Number	2646-17-5	Molecular Weight	262.30600
	Density	1.15 g/cm3	Boiling Point	464.9ºC at 760 mmHg
	Molecular Formula	C₁₇H₁₄N₂O	Melting Point	124-126°C
	MSDS	Chinese USA	Flash Point	306.4ºC
	Symbol	GHS08	Signal Word	Warning

Use of C.I. Solvent Orange 2

C.I. Solvent Orange 2 is a dye.

Name	Solvent Orange 2
Synonym	More Synonyms

Density	1.15 g/cm3
Boiling Point	464.9ºC at 760 mmHg
Melting Point	124-126°C
Molecular Formula	C₁₇H₁₄N₂O
Molecular Weight	262.30600
Flash Point	306.4ºC
Exact Mass	262.11100
PSA	44.95000
LogP	5.26920
Vapour Pressure	3.34E-07mmHg at 25°C
Index of Refraction	1.624

C.I. Solvent Orange 2 MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QL5425000

CHEMICAL NAME :: 2-Naphthol, 1-(o-tolylazo)-

CAS REGISTRY NUMBER :: 2646-17-5

BEILSTEIN REFERENCE NO. :: 0959684

LAST UPDATED :: 199709

DATA ITEMS CITED :: 18

MOLECULAR FORMULA :: C17-H14-N2-O

MOLECULAR WEIGHT :: 262.33

WISWESSER LINE NOTATION :: L66J BNUNR B1& CQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Behavioral - food intake (animal) Gastrointestinal - hypermotility, diarrhea Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Behavioral - food intake (animal) Lungs, Thorax, or Respiration - respiratory stimulation Gastrointestinal - changes in structure or function of salivary glands

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Behavioral - food intake (animal) Gastrointestinal - hypermotility, diarrhea Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 60 mg/kg

TOXIC EFFECTS :: Behavioral - food intake (animal) Lungs, Thorax, or Respiration - respiratory stimulation Gastrointestinal - changes in structure or function of salivary glands

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 56 gm/kg/20W-I

TOXIC EFFECTS :: Blood - pigmented or nucleated red blood cells Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - changes in testicular weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 115 gm/kg/44W-C

TOXIC EFFECTS :: Related to Chronic Data - death

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 6 gm/kg/52W

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Gastrointestinal - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 50 mg/kg

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Kidney, Ureter, Bladder - tumors

MUTATION DATA

TEST SYSTEM :: Rodent - mouse

DOSE/DURATION :: 200 mg/kg/48H (Intermittent)

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 389,3,1997 *** REVIEWS *** IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 8,165,1975 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 8,165,1975 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987 TOXICOLOGY REVIEW ARVPAX Annual Review of Pharmacology. (Palo Alto, CA) V.1-15, 1961-75. For publisher information, see ARPTDI. Volume(issue)/page/year: 14,127,1974 TOXICOLOGY REVIEW AEHLAU Archives of Environmental Health. (Heldref Pub., 4000 Albemarle St., NW, Washington, DC 20016) V.1- 1960- Volume(issue)/page/year: 23,6,1971

Symbol	GHS08
Signal Word	Warning
Hazard Statements	H351
Precautionary Statements	P281
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn: Harmful;
Risk Phrases	R40
Safety Phrases	S36
RIDADR	NONH for all modes of transport
RTECS	QL5425000
HS Code	2928000090

Precursor 9
CAS#:95-53-4 o-Toluidine CAS#:135-19-3 2-Naphthol CAS#:636-21-5 o-Toluidine HCl CAS#:131-79-3 2-Naphthalenami...
CAS#:20893-80-5 naphthalene-2-d... CAS#:614-63-1 1,3-di-o-tolylt... CAS#:2028-34-4 o-methylbenzene... CAS#:875-83-2 sodium 2-naphtholate
CAS#:13140-49-3 1-(2-methylphen...
DownStream 1
CAS#:606-79-1 1,6-dinitronaph...

HS Code	2928000090
Summary	2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Furoquinoline alkaloids as photosensitizers in Chlamydomonas reinhardtii.

Mutat. Res. 249(1) , 105-10, (1991)

Seven naturally occurring furoquinoline alkaloids were investigated for their photobiological activity using arg-1 cells of Chlamydomonas reinhardtii. UV-A-mediated toxicity of the compounds was calcu...

Effect of 1-m-tolueneazo-2-naphthol on hepatic drug metabolism. I. Induction of cytochrome P-448.

J. Pharmacobiodyn. 5(4) , 259-65, (1982)

Treatment of rats with 1-m-tolueneazo-2-naphthol (mTAN) caused marked increase in liver weight, microsomal 7-ethoxycoumarin O-deethylase activity and cytochrome P-450 content, with 2 nm hypochromic sh...

The effect of tyrosine conjugation on the critical micellar concentration of free and glycine-conjugated bile salts.

Biochim. Biophys. Acta 876(3) , 677-83, (1986)

We investigated the effect of conjugation with the aromatic amino acid tyrosine on the critical micellar concentration (CMC) of bile salts. The CMC values were determined by surface tension and by dye...

ORANGE OT

Oil Orange SS

1-(o-Tolylazo)-2-naphthol

toluene-<2 azo 1>-2-naphthol

orangess

fatorangeii

Orange RC

oranzss

oilorangeot

MFCD00059523

EINECS 220-162-8

aforangeno2

DAIDAI403

1-(o-Tolylazo)-2-naphthol,Solvent Orange 2

1-[(2-Methylphenyl)Azo]-2-Naphthol

corange2

1-<(2'-toluic)azo>-2-naphthol

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: C.I. Solvent Orange 2
Price: Check
Purity: 95.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

DC Chemicals Limited
China
Product Name: C.I. Solvent Orange 2
Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
Purity: 98.0%
Delivery: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Solvent Orange 2
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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MSDS

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CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

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Precursor & DownStream

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