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Sigma-Aldrich

Arsenic(III) oxide

ACS reagent (primary standard)

Synonyme(s) :

Arsenic trioxide, Arsenous acid

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About This Item

Formule empirique (notation de Hill):
As2O3
Numéro CAS:
1327-53-3
Poids moléculaire :
197.84
Numéro CE :
215-481-4
Numéro MDL:
MFCD00003433
Code UNSPSC :
12171602
ID de substance PubChem :
329753664
Nomenclature NACRES :
NB.24

Qualité

ACS reagent (primary standard)

Pression de vapeur

0 hPa ( 66 °C)

Pureté

99.95-100.05%

Forme

powder

Pertinence de la réaction

reagent type: catalyst
core: arsenic

Résidus de calcination

≤0.02%

Solubilité

dilute HCl: insoluble ≤0.01%

Traces d'anions

S2-: passes test (lim. ~0.001%)
chloride (Cl-): ≤0.005%

Traces de cations

Fe: ≤5 ppm
Pb: ≤0.002%
Sb: ≤0.05%

Chaîne SMILES 

O=[As]O[As]=O

InChI

1S/As2O3/c3-1-5-2-4

Clé InChI

IKWTVSLWAPBBKU-UHFFFAOYSA-N

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Description générale

Arsenic (III) oxide, also referred to as arsenic trioxide, is an amphoteric oxide that is used as a raw material to produce several arsenic-based compounds.

Application

Arsenic (III) oxide is used
  • In the synthesis of arsenic pentafluoride (AsF5) by static fluorination method in a closed system.
  • In the preparation of arsenic-doped ZnO films by adding As2O3 to zinc acetate, 2-methoxyethanol, and monoethanolamine by sol-gel spin coating method.

Mention d'avertissement

Danger

Mentions de danger

H300,H314,H350,H372,H410

Classification des risques

Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Eye Dam. 1 - Skin Corr. 1B - STOT RE 1

Organes cibles

Respiratory system,Cardio-vascular system,Gastrointestinal tract

Code de la classe de stockage

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Xiao Liu et al.
Science China. Life sciences, 63(11), 1744-1754 (2020-05-10)
This study aimed to explore macrophage polarization in acute graft-versus-host disease after hematopoietic stem cell transplantation, and investigated if arsenic trioxide (ATO) could correct this imbalance. In the colon of GVHD mice, we found that the number of F4/80+iNOS+ cells
Yanfei Jia et al.
PloS one, 8(1), e54774-e54774 (2013-02-06)
Alpha-fetoprotein (AFP)-producing gastric cancer (AFPGC), represented by the production of AFP, has a more aggressive behavior than common gastric cancer. The underlying mechanisms are not well understood. Arsenic trioxide (As(2)O(3)) is used clinically to treat acute promyelocytic leukemia(APL) and has
Yuhua Fan et al.
Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology, 31(1), 80-91 (2013-02-01)
Arsenic trioxide (As2O3) is a highly effective agent for treatment of acute promyelocytic leukemia (APL). However, consecutively administered As2O3 induces serious adverse cardiac effects, including long QT syndrome (LQTs) and even sudden cardiac death. Previous studies have shown that genistein
Michael T Brady et al.
Leukemia research, 37(7), 822-828 (2013-05-01)
Signal transducer and activator of transcription (STAT) 3 inhibits dendritic cell (DC) differentiation and is constitutively activated in blasts of approximately half of AML patients. We investigated the correlation between STAT3 activity, DC maturation and the ability to stimulate T-cells
Jianing Wu et al.
Toxicology letters, 220(1), 61-69 (2013-04-02)
Notch signaling has been demonstrated to have a central role in cancer stem-like cells (CSLCs) in glioblastoma multiforme (GBM). We have recently demonstrated the inhibitory effect of arsenic trioxide (ATO) on CSLCs in glioblastoma cell lines. In this study we
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