DSMA (CAS 144-21-8) — formula CH3AsNa2O3, molecular weight 183.934; category fertilizers.
DSMA (CAS 144-21-8) is a chemical raw material in the fertilizers category. Its molecular formula CH3AsNa2O3 comprises 1 C, 3 H, 1 As, 2 Na, 3 O atoms. Its molecular weight is about 183.934. Reported physicochemical data: melting point around >355 °C, LogP about Kow = <10. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 144-21-8 |
|---|---|
| Molecular Formula | CH3AsNa2O3 |
| Molecular Weight | 183.934 |
| Melting Point | >355 °C |
| LogP | Kow = <10 |
| Applications | herbicide for control of grass weeds in turf, cotton, and non-crop areas, Also used in pharmaceuticals, Farming (Pesticides), 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 |
| Category | Fertilizers |
Documented applications: herbicide for control of grass weeds in turf, cotton, and non-crop areas, Also used in pharmaceuticals, Farming (Pesticides), 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.
DSMA is a fertilizer compound with CAS registry number 144-21-8 and molecular formula CH3AsNa2O3 (molecular weight 183.934), belonging to the fertilizers segment of chemical raw materials.
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
Category: fertilizers
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: herbicide for control of grass weeds in turf, cotton, and non-crop areas, Also used in pharmaceuticals, Farming (Pesticides), 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.
Category: Fertilizers.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for DSMA (CAS 144-21-8), compiled from public chemistry databases.
| CAS Registry Number | 144-21-8 |
|---|---|
| PubChem CID | 8947 |
| Molecular formula | CH3AsNa2O3 |
| IUPAC name | disodium;methyl-dioxido-oxo-λ5-arsane |
| UNII (FDA) | 7NK4BV40VN |
| Molecular Weight | 183.934 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 183.909352 |
| Monoisotopic Mass | 183.909352 |
| Topological Polar Surface Area | 63.2 |
| Heavy Atom Count | 7 |
| Melting Point | >355 °C |
|---|---|
| Solubility | In water, 4.32X10+5 mg/l @ 25 °C |
| Density | 1.04 g/ml |
| Vapor Pressure | 0.0000001 [mmHg] |
| Vapor Pressure | 10-7 mm Hg @ 25 °C |
| LogP | Kow = <10 |
| Dissociation Constants | pKa1 = 4.1; pKa2 = 8.94 |
144-21-8; Disodium methylarsonate; DISODIUM METHANEARSONATE; Disomear; DSMA; Metharsan; Stenosine; Tonarsan; Tonarsin; Arsynal; Diarsen; Methar; Namate; Somar; Neo-Asycodile; Weed broom
| 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]
DSMA · CAS 144-21-8 · CH3AsNa2O3. UNII 7NK4BV40VN. Melting Point: >355 °C; Solubility: In water, 4.32X10+5 mg/l @ 25 °C; Density: 1.04 g/ml.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: DSMA