| Product name | demeton-S-methyl |
|---|
| Product number | - |
|---|---|
| Other names | Methyl isosystox |
| Identified uses | For industry use only. |
|---|---|
| Uses advised against | no data available |
| Company | MOLBASE (Shanghai) Biotechnology Co., Ltd. |
|---|---|
| Address | Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China |
| Telephone | +86(21)64956998 |
| Fax | +86(21)54365166 |
| Emergency phone number | +86-400-6021-666 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
Acute toxicity - Oral, Category 3
Acute toxicity - Dermal, Category 3
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
2.2 GHS label elements, including precautionary statements| Pictogram(s) |   |
|---|---|
| Signal word | Danger |
| Hazard statement(s) | H301 Toxic if swallowed H311 Toxic in contact with skin H411 Toxic to aquatic life with long lasting effects |
| Precautionary statement(s) | |
| Prevention | P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P273 Avoid release to the environment. |
| Response | P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor/… P321 Specific treatment (see ... on this label). P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P312 Call a POISON CENTER/doctor/…if you feel unwell. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P391 Collect spillage. |
| Storage | P405 Store locked up. |
| Disposal | P501 Dispose of contents/container to ... |
none
3.Composition/information on ingredients 3.1 Substances| Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
|---|---|---|---|---|
| demeton-S-methyl | demeton-S-methyl | 919-86-8 | none | 100% |
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaledFresh air, rest. Refer for medical attention.
In case of skin contactRemove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .
In case of eye contactFirst rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
If swallowedRinse mouth. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention .
4.2 Most important symptoms/effects, acute and delayedIt inhibits the nervous system and is absorbed readily through the skin. This compound is a liquid organophosphorus insecticide. Poisonous; may be fatal if inhaled, swallowed or absorbed through skin. Contact may cause burns to skin and eyes. (EPA, 1998)
4.3 Indication of immediate medical attention and special treatment needed, if necessary/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Aggressive airway control may be needed. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . /Organophosphates and related compounds/
5.Fire-fighting measures 5.1 Extinguishing media Suitable extinguishing mediaIf material on fire or involved in fire: Do not extinguish fire unless flow can be stopped or safely confined. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use "alcohol" foam, carbon dioxide or dry chemical. /Organophosphorus pesticides, liquid, NOS/
5.2 Specific hazards arising from the chemicalWhen heated to decomposition, it emits very toxic fumes of oxides of phosphorus and sulfur. This compound is a liquid organophosphorus insecticide. This material may burn but does not ignite readily. Container may explode in heat of fire. Fire may produce irritating or poisonous gases. Runoff from fire control water may give off poisonous gases. Hydrolyzed by alkali. (EPA, 1998)
5.3 Special protective actions for fire-fightersWear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures 6.1 Personal precautions, protective equipment and emergency proceduresUse personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.
6.2 Environmental precautionsPersonal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.
6.3 Methods and materials for containment and cleaning upAdsorb on sand or limestone, add flammable solvent and burn in an incinerator with effluent gas scrubbing.
7.Handling and storage 7.1 Precautions for safe handlingAvoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilitiesProvision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Keep in a well-ventilated room.Rooms used for storage only should be soundly constructed & fitted with secure locks. Floors should be kept clear & pesticides clearly identified. If repacking is carried out in storage rooms, adequate light should be available; floors should be impervious & sound ... . /Pesticides/
8.Exposure controls/personal protection 8.1 Control parameters Occupational Exposure limit valuesno data available
Biological limit valuesno data available
8.2 Appropriate engineering controlsHandle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE) Eye/face protectionSafety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protectionWear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protectionWear dust mask when handling large quantities.
Thermal hazardsno data available
9.Physical and chemical properties| Physical state | Demeton-s-methyl is a pale yellow oil. Used as an insecticide. Not registered as a pesticide in the U.S. (EPA, 1998) |
|---|---|
| Colour | Oily colorless to pale yellow liquid |
| Odour | Unpleasant odor |
| Melting point/ freezing point | no data available |
| Boiling point or initial boiling point and boiling range | 287.4ºC at 760 mmHg |
| Flammability | Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. |
| Lower and upper explosion limit / flammability limit | no data available |
| Flash point | 2ºC |
| Auto-ignition temperature | no data available |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | no data available |
| Solubility | Sol in organic solvents |
| Partition coefficient n-octanol/water (log value) | log Kow = 1.02 |
| Vapour pressure | 0.00036 mm Hg at 20°C (EPA, 1998) |
| Density and/or relative density | 1.197g/cm3 |
| Relative vapour density | (air = 1): 7.9 |
| Particle characteristics | no data available |
no data available
10.2 Chemical stabilityDemeton-S-methyl is less stable than demeton. 50% hydrolysis at 70°C requires 1.25 hr at pH 9 and 4.9 hr at pH 3.
10.3 Possibility of hazardous reactionsOrganophosphates, such as DEMETON-S-METHYL, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
10.4 Conditions to avoidno data available
10.5 Incompatible materials... incompatible with alkaline materials.
10.6 Hazardous decomposition productsWhen heated to decomposition it emits toxic fumes of /phosphorous and sulfur oxides/.
11.Toxicological information Acute toxicity- Oral: LD50 Rat oral 30 mg/kg
- Inhalation: LC50 Rat inhalation 500 mg/cu m/4 hr
- Dermal: no data available
no data available
Serious eye damage/irritationno data available
Respiratory or skin sensitizationno data available
Germ cell mutagenicityno data available
CarcinogenicityA4; Not classifiable as a human carcinogen.
Reproductive toxicityno data available
STOT-single exposureno data available
STOT-repeated exposureno data available
Aspiration hazardno data available
12.Ecological information 12.1 Toxicity- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
AEROBIC: Demeton-S-methyl has a reported half-life in soil of 26 days(1). In a laboratory study, biodegradation of demeton-S-methyl was investigated in two different standardized soils with different characteristics particularly in terms of organic matter content and cation exchange capability (2). Under aerobic conditions, no demeton-S-methyl was detected one day post application(2). After 63 days under aerobic conditions 54% and 34% of the applied amount was eliminated as carbon dioxide in the two soils(2). Under anaerobic conditions 0.5% and 1.1% of the applied was eliminated as carbon dioxide, and there was a predominance of the metabolites O-demethyl-demeton-S-methyl and demeton-S-methyl sulfoxide. The half-lives of demeton-S-methyl were approximately 5 hours in the non-sterile soil and 70 hours in the sterile test control.
12.3 Bioaccumulative potentialAn estimated BCF value of 1 was calculated in fish for demeton-S-methyl(SRC), using a measured log Kow of 1.02(1) and a regression-derived equation(2). According to a recommended classification scheme(3), this BCF value suggests the potential for bioconcentration in aquatic organisms is low(SRC).
12.4 Mobility in soilThe Koc of demeton-S-methyl was reported as 31 in an unspecified soil(1). Demeton-S-methyl showed little adsorption to sediment rich in organic matter (6.2 to 9.3% organic matter) obtained from Yugoslavia, with Kd values of 0.68 and 2.66(2). According to a classification scheme(3), this Koc value indicates that demeton-S-methyl is expected to have very high mobility in soil(SRC).
12.5 Other adverse effectsno data available
13.Disposal considerations 13.1 Disposal methods ProductThe material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packagingContainers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
14.Transport information 14.1 UN Number| ADR/RID: UN3018 | IMDG: UN3018 | IATA: UN3018 |
| ADR/RID: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC |
| IMDG: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC |
| IATA: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC |
| ADR/RID: 6.1(a) | IMDG: 6.1(a) | IATA: 6.1(a) |
| ADR/RID: II | IMDG: II | IATA: II |
| ADR/RID: yes | IMDG: yes | IATA: yes |
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Codeno data available
15.Regulatory information 15.1 Safety, health and environmental regulations specific for the product in question| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| demeton-S-methyl | demeton-S-methyl | 919-86-8 | none |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Not Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Not Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Not Listed. | ||
| Vietnam National Chemical Inventory | Not Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Not Listed. | ||
| Creation Date | Aug 19, 2017 |
|---|---|
| Revision Date | Aug 19, 2017 |
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
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