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Sigma-Aldrich

Arsenic(III) oxide

ACS reagent (primary standard)

Synonym(s):

Arsenic trioxide, Arsenous acid

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125 G
€367.00

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125 G
€367.00

About This Item

Empirical Formula (Hill Notation):
As2O3
CAS Number:
1327-53-3
Molecular Weight:
197.84
EC Number:
215-481-4
MDL number:
MFCD00003433
UNSPSC Code:
12171602
PubChem Substance ID:
329753664
NACRES:
NB.24
grade:
ACS reagent (primary standard)
form:
powder
solubility:
dilute HCl: insoluble ≤0.01%

€367.00

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grade

ACS reagent (primary standard)

vapor pressure

0 hPa ( 66 °C)

Assay

99.95-100.05%

form

powder

reaction suitability

reagent type: catalyst
core: arsenic

ign. residue

≤0.02%

solubility

dilute HCl: insoluble ≤0.01%

anion traces

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

cation traces

Fe: ≤5 ppm
Pb: ≤0.002%
Sb: ≤0.05%

SMILES string

O=[As]O[As]=O

InChI

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

InChI key

IKWTVSLWAPBBKU-UHFFFAOYSA-N

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General description

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.

Signal Word

Danger

Hazard Statements

H300,H314,H350,H372,H410

Hazard Classifications

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

Target Organs

Respiratory system,Cardio-vascular system,Gastrointestinal tract

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH SVHC Candidate List

CAS No.

EU REACH Annex XVII (Restriction List)

CAS No.

EU REACH Annex XIV (Authorisation List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV6822
MKCW0324
MKCV7368
MKCV1125
MKCW5550

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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
Cui Li et al.
Toxicology letters, 219(3), 223-230 (2013-04-02)
Arsenic trioxide (As2O3; ATO) is clinically effective in treating acute promyelocytic leukemia (APL); however, it frequently causes cardiotoxic effects. This study was designed to investigate whether ATO could induce apoptosis of cardiac fibroblasts (CFs) that play very important roles in
Ling-Huei Yih et al.
Toxicology and applied pharmacology, 267(3), 228-237 (2013-01-29)
Accumulated evidence has revealed a tight link between arsenic trioxide (ATO)-induced apoptosis and mitotic arrest in cancer cells. AKT, a serine/threonine kinase frequently over-activated in diverse tumors, plays critical roles in stimulating cell cycle progression, abrogating cell cycle checkpoints, suppressing
Shaohong Fang et al.
Cell death & disease, 12(1), 88-88 (2021-01-20)
Inducing autophagy and inhibiting apoptosis may provide a therapeutic treatment for atherosclerosis (AS). For the treatment of progressive AS, arsenic trioxide (ATO) has been used to coat vascular stents. However, the effect of ATO on autophagy of macrophages is still
Liangchun Hao et al.
Journal of pediatric hematology/oncology, 35(2), e67-e70 (2013-02-16)
The aim of this study was to investigate the hepatotoxicity induced by arsenic trioxide (As2O3) at a therapeutic dose for pediatric acute promyelocytic leukemia (APL). A total of APL patients received As2O3 treatment by IV drip. Hepatotoxicity was monitored based
View All Related Papers

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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