DSMA (CAS 144-21-8) — formula CH3AsNa2O3, molecular weight 183.934.
Documented applications: Uses: Used as herbicide for control of grass weeds in turf, cotton, and non-crop areas, Also used in pharmaceuticals, [HSDB], Farming (Pesticides) [Category: Industry], For Disodium methanearsonate (USEPA, OPP Pesticide Code: 013802) ACTIVE products with label matches., SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Herbicide, pharmaceuticals, Recommended to control grass weeds on non-crop areas, directed spray under trees., USEFUL AS DIRECTED APPLICATION ... FOR POST-EMERGENT CONTROL OF WEEDS AND GRASSES, IN ZOYSIA, BLUEGRASS, AND BERMUDA GRASS LAWNS, GENERAL NON-CROP WEED CONTROL ... ., For more Uses (Complete) data for DISODIUM METHANEARSONATE (6 total), please visit the HSDB record page., Methylarsonic acid, disodium salt is used as an herbicide and pesticide. (L389), Methods of Manufacturing: Reaction of methyl chloride with sodium arsenate., Prepared from sodium arsenite and methyl iodide., Prepared by the reaction of dimethyl sulfate with a solution of arsenic trioxidein sodium hydroxide., Methanearsonic acid, disodium salt is prepared commercially by the reaction of sodium arsenate with methyl chloride., Formulations, Preparations: USEPA, OPP Pesticide Code 013802, Trade Names: Ansar 8100, Arrhenal, Ansar DSMA Liquid, Dinate, Crab-E-Rad, Chipco Crab Kleen, Arsinyl, Sodar, Methar, Drexel DSMA Liquid, Di-Tac, Ansar 184, Weed-E-Rad, Versar DSMA-LQ, Calar-E-Rad, Dal-E-Rad, Jon-Trol, Namate., DISODIUM METHYLARSONATE COMBINED WITH EQUIMOLAR AMT OF MERCURY SALICYLATE IS CALLED ENESOL, WHITE POWDER, SOLUBLE IN WATER., ANSAR 8100--WATER SOLUBLE POWDER 81% ACTIVE INGREDIENT, ANSAR DSMA LIQUID--AQ SOLN 21% ACTIVE INGREDIENT ... ., THE PENTAHYDRATE CONTAINS ABOUT 28% ARSENIC, BUT THE COMMERCIAL MATERIAL USUALLY HAS A PURITY OF ONLY 50% (14% ARSENIC)., For more Formulations, Preparations (Complete) data for DISODIUM METHANEARSONATE (6 total), General Manufacturing Information: MSMA and DSMA were introduced by Ansul Chemical Co (which no longer exists) ... under US patent as trade mark 'Ansar' ... ., ... MAA, METHANEARSONIC ACID, AND DSMA WERE NOT GOOD SOIL STERILIZERS. ... DSMA CONTROLLED DALLIS GRASS (PASPALUM DILATATUM ... AND GOOSEGRASS (ELEUSINE INDICA (L) GAERTN). ... DSMA GREATLY ENHANCED WEED CONTROL ACTIVITY OF ... DICRYL., WEEDS CONTROLLED BY ... DSMA: AGERATUM, TROPIC, ANGELTONGRASS, BAMBOO GRASS, BARNYARDGRASS, BINDWEED, FIELD, BLACKSEEDGRASS, BUFFELGRASS, BULRUSH, CARELESS WEED, CHEATGRASS, CHICKWEED, MOUSEEAR, STICKY, CHOMPIPE, COCKLEBUR, COMMON, CRABGRASS, HAIRY ... ., WEEDS CONTROLLED BY ... DSMA: ... CRABGRASS, LARGE, SMALL, SMOOTH, DALLISGRASS, DROPSEED, INDIAN, FIDDLENECK, FINGERGRASS, SWOLLEN, FOXTAIL, GIANT, GREEN, YELLOW, GERMAN WEED, GROMWELL, GROUNDCHERRY, LONGLEAF, HEMPWEED, CLIMBING, HENBIT ... ., For more General Manufacturing Information (Complete) data for DISODIUM METHANEARSONATE (12 total).
DSMA is a chemical compound with CAS registry number 144-21-8 and molecular formula CH3AsNa2O3 (molecular weight 183.934).
CAS number: 144-21-8
Its molecular formula CH3AsNa2O3 comprises 1 C, 3 H, 1 As, 2 Na, 3 O atoms.
Also known as: DSMA · disodium methylarsonate
The CAS registry number of DSMA is 144-21-8.
Molecular formula CH3AsNa2O3, molecular weight 183.934.
It is also registered under: DSMA, disodium methylarsonate.
Recorded applications: Uses: Used as herbicide for control of grass weeds in turf, cotton, and non-crop areas, Also used in pharmaceuticals, [HSDB], Farming (Pesticides) [Category: Industry], For Disodium methanearsonate (USEPA, OPP Pesticide Code: 013802) ACTIVE products with label matches., SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Herbicide, pharmaceuticals, Recommended to control grass weeds on non-crop areas, directed spray under trees., USEFUL AS DIRECTED APPLICATION ... FOR POST-EMERGENT CONTROL OF WEEDS AND GRASSES, IN ZOYSIA, BLUEGRASS, AND BERMUDA GRASS LAWNS, GENERAL NON-CROP WEED CONTROL ... ., For more Uses (Complete) data for DISODIUM METHANEARSONATE (6 total), please visit the HSDB record page., Methylarsonic acid, disodium salt is used as an herbicide and pesticide. (L389), Methods of Manufacturing: Reaction of methyl chloride with sodium arsenate., Prepared from sodium arsenite and methyl iodide., Prepared by the reaction of dimethyl sulfate with a solution of arsenic trioxidein sodium hydroxide., Methanearsonic acid, disodium salt is prepared commercially by the reaction of sodium arsenate with methyl chloride., Formulations, Preparations: USEPA, OPP Pesticide Code 013802, Trade Names: Ansar 8100, Arrhenal, Ansar DSMA Liquid, Dinate, Crab-E-Rad, Chipco Crab Kleen, Arsinyl, Sodar, Methar, Drexel DSMA Liquid, Di-Tac, Ansar 184, Weed-E-Rad, Versar DSMA-LQ, Calar-E-Rad, Dal-E-Rad, Jon-Trol, Namate., DISODIUM METHYLARSONATE COMBINED WITH EQUIMOLAR AMT OF MERCURY SALICYLATE IS CALLED ENESOL, WHITE POWDER, SOLUBLE IN WATER., ANSAR 8100--WATER SOLUBLE POWDER 81% ACTIVE INGREDIENT, ANSAR DSMA LIQUID--AQ SOLN 21% ACTIVE INGREDIENT ... ., THE PENTAHYDRATE CONTAINS ABOUT 28% ARSENIC, BUT THE COMMERCIAL MATERIAL USUALLY HAS A PURITY OF ONLY 50% (14% ARSENIC)., For more Formulations, Preparations (Complete) data for DISODIUM METHANEARSONATE (6 total), General Manufacturing Information: MSMA and DSMA were introduced by Ansul Chemical Co (which no longer exists) ... under US patent as trade mark 'Ansar' ... ., ... MAA, METHANEARSONIC ACID, AND DSMA WERE NOT GOOD SOIL STERILIZERS. ... DSMA CONTROLLED DALLIS GRASS (PASPALUM DILATATUM ... AND GOOSEGRASS (ELEUSINE INDICA (L) GAERTN). ... DSMA GREATLY ENHANCED WEED CONTROL ACTIVITY OF ... DICRYL., WEEDS CONTROLLED BY ... DSMA: AGERATUM, TROPIC, ANGELTONGRASS, BAMBOO GRASS, BARNYARDGRASS, BINDWEED, FIELD, BLACKSEEDGRASS, BUFFELGRASS, BULRUSH, CARELESS WEED, CHEATGRASS, CHICKWEED, MOUSEEAR, STICKY, CHOMPIPE, COCKLEBUR, COMMON, CRABGRASS, HAIRY ... ., WEEDS CONTROLLED BY ... DSMA: ... CRABGRASS, LARGE, SMALL, SMOOTH, DALLISGRASS, DROPSEED, INDIAN, FIDDLENECK, FINGERGRASS, SWOLLEN, FOXTAIL, GIANT, GREEN, YELLOW, GERMAN WEED, GROMWELL, GROUNDCHERRY, LONGLEAF, HEMPWEED, CLIMBING, HENBIT ... ., For more General Manufacturing Information (Complete) data for DISODIUM METHANEARSONATE (12 total).
Public-database records for DSMA (CAS 144-21-8), reproduced here for independent cross-checking.
| Reported hazard statements | H301 (95%), H331 (97.5%), H400 (100%), H410 (97.5%) |
|---|
H301 (95%): Toxic if swallowed [Danger Acute toxicity, oral]
H331 (97.5%): Toxic if inhaled [Danger Acute toxicity, inhalation]
| 熔点 | >355 °C |
|---|---|
| 溶解度 | In water, 4.32X10+5 mg/l @ 25 °C |
| 密度 | 1.04 g/ml |
| 蒸气压 | 0.0000001 [mmHg] |
| 蒸气压 | 10-7 mm Hg @ 25 °C |
| LogP | Kow = <10 |
| Dissociation Constants | pKa1 = 4.1; pKa2 = 8.94 |
| CAS Registry Number | 144-21-8 |
|---|---|
| PubChem CID | 8947 |
| 分子式 | CH3AsNa2O3 |
| IUPAC 名称 | disodium;methyl-dioxido-oxo-λ5-arsane |
| UNII（FDA） | 7NK4BV40VN |
144-21-8; Disodium methylarsonate; DISODIUM METHANEARSONATE; Disomear; DSMA; Metharsan; Stenosine; Tonarsan; Tonarsin; Arsynal; Diarsen; Methar; Namate; Somar; Neo-Asycodile; Weed broom
| 分子量 | 183.934 |
|---|---|
| 氢键供体数 | 0 |
| 氢键受体数 | 3 |
| 可旋转键数 | 0 |
| 精确质量 | 183.909352 |
| 单同位素质量 | 183.909352 |
| 拓扑极性表面积 | 63.2 |
| 重原子数 | 7 |
| 形式电荷 | 0 |
| 复杂度 | 49.8 |
DSMA · CAS 144-21-8 · CH3AsNa2O3. UNII 7NK4BV40VN. 熔点: >355 °C; 溶解度: In water, 4.32X10+5 mg/l @ 25 °C; 密度: 1.04 g/ml.
Source: PubChem / Wikidata; the batch COA governs where values differ.
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