Dimethylarsinic acid
Cacodylic acid
CAS: 75-60-5
Molecular Formula: C2H7AsO2
Dimethylarsinic acid - Names and Identifiers
| Name | Cacodylic acid |
| Synonyms | ANSAR(R) Cacodylic acid Cacodylie acid CACODYLIC ACID Dimethylarsinic acid Dimethylarsonic acid DIMETHYLARSINIC ACID DIMETHYLARSONIC ACID arsinic acid, dimethyl- HYDROXYDIMETHYLARSINE OXIDE DIMETHYLHYDROXYARSINE OXIDE |
| CAS | 75-60-5 |
| EINECS | 200-883-4 |
| InChI | InChI=1/C2H7AsO2/c1-3(2,4)5/h1-2H3,(H,4,5) |
Dimethylarsinic acid - Physico-chemical Properties
| Molecular Formula | C2H7AsO2 |
| Molar Mass | 138 |
| Melting Point | 195-198 °C |
| Boling Point | >200 °C |
| Flash Point | 109.4°C |
| Water Solubility | Soluble in water (50 mg/ml), water (2000 at 25°C), alcohols, and acetic acid. Insoluble in ether. |
| Vapor Presure | 0.00288mmHg at 25°C |
| Appearance | Powder/Solid |
| Color | White |
| Merck | 14,1604 |
| BRN | 1736965 |
| pKa | 1.57(at 25℃) |
| Storage Condition | Store at RT. |
| Stability | Aqueous solutions react violently with active metals. Incompatible with strong oxidizing agents, strong bases. |
| Sensitive | Hygroscopic |
| Use | For pharmaceutical applications |
Dimethylarsinic acid - Risk and Safety
| Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1572 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | CH7525000 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | Yes |
| HS Code | 29310099 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orally in rats: 1350 mg/kg (Bailey, White) |
Dimethylarsinic acid - Reference Information
| use | used in pharmacy |
| production method | reduced by disodium methylarsate with sulfur dioxide, under alkaline conditions, it reacts with methyl chloride to produce sodium dimethylarsonic acid, which is then treated with hydrochloric acid. |
| category | toxic substances |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 644 mg/kg; abdominal cavity-mouse LD50: 500 mg/kg |
| stimulation data | skin-rabbit 2600 mg/m3/2 hours moderate; eye-rabbit 2600 mg/m3/2 h moderate |
| flammability hazard characteristics | decomposition of toxic arsenide gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Separate storage and transportation from food raw materials |
| extinguishing agent | carbon dioxide, sand, water |
| occupational standard | TWA 0.2 mg (arsenic)/m3; STEL 0.5 mg (arsenic)/m3 |
| (IARC) carcinogen classification | 2B (Vol. 100C) 2012 |
| EPA chemical substance information | The information is: ofmpub.epa.gov provides (external link) |
| toxic substance data | The information is: pubchem.ncbi.nlm.nih.gov Provide (external link) |
Last Update：2024-04-09 20:49:11
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