S-甲基苯并[1,2,3]噻二唑-7-硫代羧酸酯
Acibenzolar-S-Methyl
CAS: 135158-54-2
Molecular Formula: C8H6N2OS2
S-甲基苯并[1,2,3]噻二唑-7-硫代羧酸酯 - Names and Identifiers
S-甲基苯并[1,2,3]噻二唑-7-硫代羧酸酯 - Physico-chemical Properties
| Molecular Formula | C8H6N2OS2 |
| Molar Mass | 210.28 |
| Density | 1.450 |
| Melting Point | 134-135℃ |
| Boling Point | 267°C (rough estimate) |
| Water Solubility | 7.7 mg l-1 (25 °C) |
| Solubility | Chloroform (Slightly), Methanol (Very Slightly) |
| Vapor Presure | 4.4 x 10-4 Pa (25 °C) |
| Appearance | neat |
| Color | Off-White to Light Beige |
| pKa | -3.90±0.50(Predicted) |
| Storage Condition | 0-6°C |
| Refractive Index | 1.5690 (estimate) |
| Physical and Chemical Properties | The pure product is a white to beige powdery solid with a charred smell. M. p. 132.9 ℃, B. p. about 267 ℃, relative density 1.54(20 ℃), vapor pressure 4.4 × 10-4Pa (25 ℃). Solubility at 25 ℃: methanol 4.2g/L, ethyl acetate 25g/L, n-hexane 1.3g/L, toluene 36g/L, acetone 28g/L, n-octanol 5.4g/L, dichloromethane 160g/L, water 7.7g/L. Distribution coefficient 3.1(20 ℃). The half-life of hydrolysis is 3.8 years (20 ℃,pH = 5), 23 weeks (20 ℃,pH = 7) and 19.4 hours (20 ℃,pH = 9). |
S-甲基苯并[1,2,3]噻二唑-7-硫代羧酸酯 - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S37 - Wear suitable gloves. S46 - If swallowed, seek medical advice immediately and show this container or label. S59 - Refer to manufacturer / supplier for information on recovery / recycling. 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 3077 9 / PGIII |
| WGK Germany | 3 |
| Toxicity | LD50 in rats (mg/kg): >2000 orally; >2000 dermally (Ruess) |
S-甲基苯并[1,2,3]噻二唑-7-硫代羧酸酯 - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | Alanic acid-S-methyl also known as Activated ester (1,2, 3-benzothiadiazole-7-thiocarboxylic acid methyl ester), which is a plant disease resistance activator. It itself has no bactericidal activity and therapeutic effect, but it is absorbed by the plant to activate the plant resistance mechanism, so that the plant to a variety of fungi, bacteria, nematodes, and Virus produce a broad spectrum of self-protection and produce durable resistance. |
| toxicity | rat acute oral LD50>2000mg/kg, rat acute percutaneous LD50>2000mg/kg, rats with acute inhalation LC50>5000mg/L (4H). There was no irritation to rabbit eyes and skin. No teratogenic, carcinogenic or mutagenic effects were observed in animal experiments. Rainbow trout lc500.4 mg/L (96H), big Turus lc502.8 mg/L (96H), Daphnia ld502.4 mg/L (48h), wild duck ld505200 mg/kg (8h). |
| Use | benzothiadiazole carboxylic acid ester fungicide, but no bactericidal effect, belonging to plant disease resistance activator. A variety of biological and non-biological factors can stimulate the defense response of the plant itself, that is, "systemic active resistance", so that the plant has a self-protective effect on a variety of fungi and bacteria. Suitable for rice, wheat, vegetables, bananas, tobacco and other crop protection agents used to control powdery mildew, rust, downy mildew. Foliar application of 30g active ingredient/hm2 on cereal crops can effectively prevent powdery mildew, and the residual period can last for 10 weeks. And can prevent leaf blight and rust. The use of 12g/hm2 every 14 days can effectively prevent tobacco downy mildew. With other conventional medicaments metalaxyl, mancozeb, enoyl-baroline mixed, not only can improve the control effect of Activated ester, but also can expand the scope of disease prevention. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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View History
S-甲基苯并[1,2,3]噻二唑-7-硫代羧酸酯
4-溴-2-乙酰基噻吩
7 - 辛烯基二甲基一氢硅烷
(R)-(+)-THALIDOMIDE[干冰运输]
DYHARD(R) UR 300
甘氨酸-D-天冬氨酸
Sodium Sulfanilate
二正丙基甲酮,二丙基酮,二丙基甲酮
ammonium hexafL
1-hydroxycyclopropyl acetate
4-溴-2-乙酰基噻吩
7 - 辛烯基二甲基一氢硅烷
(R)-(+)-THALIDOMIDE[干冰运输]
DYHARD(R) UR 300
甘氨酸-D-天冬氨酸
Sodium Sulfanilate
二正丙基甲酮,二丙基酮,二丙基甲酮
ammonium hexafL
1-hydroxycyclopropyl acetate