p-Anisidine CAS#104-94-9

CAS Number: 104-94-9
Chemical Formula: C7H9NO
Synonyms:

4-Methoxy-1-aminobenzene
1-Methoxy-4-amino-benzen (p-anisidin)
1-Methoxy-4-amino-benzene / p-anisidine

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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p-Anisidine CAS#104-94-9

P-anisidine is a substituted aniline that is aniline in which the hydrogen para to the amino group has been replaced by a methoxy group. It is used as a reagent for the detection of oxidation products such as aldehydes and ketones in fats and oils. It has a role as a reagent and a genotoxin. It is a member of methoxybenzenes, a substituted aniline and a primary amino compound.

p-Anisidine Chemical Properties

Melting point	56-59 °C(lit.)
Boiling point	240-243 °C(lit.)
bulk density	700kg/m3
density	1.06
vapor density	4.28
vapor pressure	0.02 hPa (20 °C)
refractive index	1.5559
Fp	122 °C
storage temp.	Store below +30°C.
solubility	21g/l
pka	5.34(at 25℃)
form	crystalline
color	dark gray to brown
Specific Gravity	1.07
PH	7.7 (1g/l, H2O, 20℃)
Water Solubility	21 g/L (20 ºC)
Merck	14,667
BRN	471556
Henry's Law Constant	(x 10-8 atmm3/mol): 6.62 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999)
Exposure limits	NIOSH REL: TWA 0.5 mg/m3, IDLH 50 mg/m3; OSHA PEL: TWA 0.5 mg/m3; ACGIH TLV: TWA 0.1 ppm (adopted).
Dielectric constant	8.8399999999999999
Stability:	Hygroscopic, Material Darkens In Storage With No Loss In Purity
InChI	1S/C7H9NO/c1-9-7-4-2-6(8)3-5-7/h2-5H,8H2,1H3
InChIKey	BHAAPTBBJKJZER-UHFFFAOYSA-N
SMILES	COc1ccc(N)cc1
LogP	0.950
CAS DataBase Reference	104-94-9(CAS DataBase Reference)
IARC	3 (Vol. 27, Sup 7) 1987
NIST Chemistry Reference	Benzenamine, 4-methoxy-(104-94-9)
EPA Substance Registry System	p-Anisidine (104-94-9)

Safety Information

Hazard Codes	T+,N,Xi
Risk Statements	45-26/27/28-33-50
Safety Statements	53-28-36/37-45-61-28A
RIDADR	UN 2811 6.1/PG 3
OEB	C
OEL	TWA: 0.5 mg/m3 [skin]
WGK Germany	2
RTECS	BZ5450000
F	8
Autoignition Temperature	959 °F
TSCA	TSCA listed
HazardClass	6.1
PackingGroup	III
HS Code	29222200
Storage Class	6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
Hazard Classifications	Acute Tox. 1 Dermal Acute Tox. 2 Inhalation Acute Tox. 2 Oral Aquatic Acute 1 Aquatic Chronic 3 Carc. 1B STOT RE 2
Hazardous Substances Data	104-94-9(Hazardous Substances Data)
Toxicity	Acute oral LD50 for rats 1,400 mg/kg, mice 810 mg/kg, rabbits 2,900 mg/kg (quoted, RTECS, 1985).
IDLA	50 mg/m3

Product Application of p-Anisidine CAS#104-94-9

p-Anisidine is used as a reagent to indicate the secondary stage of the oxidation, it is one of the three possible isomers of the Anisidine or methoxyaniline. The other two isomers are o-Anisidine (2-methoxyaniline) and m-Anisidine (3-methoxyaniline).
The p-anisidine is widely used as an intermediate in the production of numerous azo and triphenylmethane dyes, and pigments. It is also used in the production of pharmaceuticals including the guaiacol expectorant, as an antioxidant for polymercaptan resins, and as a corrosion inhibitor for steel. Apart from the beneficial use of p-anisidine, it is toxic for human beings. The acute exposure may cause skin irritation, whereas the chronic exposure may cause headaches, vertigo, and blood complications like sulfhemoglobin, and methemoglobin. The oral exposure to anisidine hydrochloride resulted in cancer of the urinary bladder in male and female rats.

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