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A1010

Sigma-Aldrich

Arsenic(III) oxide

ReagentPlus®, ≥99.0%

Synonym(s):

Arsenic trioxide, Arsenous acid

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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:
329770647
NACRES:
NA.55

vapor pressure

0 hPa ( 66 °C)

product line

ReagentPlus®

Assay

≥99.0%

form

powder

storage temp.

room temp

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 known as arsenic trioxide, is an amphoteric oxide that serves as a raw material for the synthesis of several arsenic-based compounds. It is utilized to decolorize glasses and enamels. Its efficacy in treating in acute promyelocytic leukaemia (APL) has been investigated.

Application

Arsenic(III) oxide was used in a study detailing the effect of arsenic trioxide in combination with γ-irradiation to elucidate the hemoglobin (Hb).

Biochem/physiol Actions

Very potent agent against acute promyelocytic leukemia (APL). Causes skin, lung and bladder cancer.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Wilson H Miller et al.
Cancer research, 62(14), 3893-3903 (2002-07-19)
Arsenic trioxide has shown substantial efficacy in treating both newly diagnosed and relapsed patients with acute promyelocytic leukemia (APL). As a single agent, it induces complete remissions, causing few adverse effects and only minimal myelosuppression. These successes have prompted investigations
E Lengfelder et al.
Leukemia, 26(3), 433-442 (2011-09-10)
Arsenic trioxide (ATO) is presently the most active single agent in the treatment of acute promyelocytic leukemia (APL). This review provides insights into the mode of action and the pharmacological properties of ATO, and summarizes the most relevant results of
Dikshith TSS
Handbook of Chemicals and Safety, 92-92 (1992)
Combined effect of arsenic trioxide and radiation on physical properties of hemoglobin biopolymer.
Saad-El-Din AA, et al.
Journal of Radiation Research and Applied Sciences, 7(2), 411-416 (2014)
Z X Shen et al.
Blood, 89(9), 3354-3360 (1997-05-01)
The therapeutic effect of arsenic trioxide (As2O3) in the treatment of acute promyelocytic leukemia (APL) was evaluated among 15 APL patients at relapse after all-trans retinoic acid (ATRA) induced and chemotherapy maintained complete remission (CR). As2O3 was administered intravenously at
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