Abstract: As one of the most efficient insecticides at the present stage, new nicotinic insecticides thianidam and Dinotefuran have become the focus of research and development, and the use of their important intermediates MNO(1,2-DIMETHYL-3-NITROISOUREA, CAS:255708-80-6) has also increased rapidly, but the substance presents certain instability under the action of high temperature thermodynamics, and there are safety risks in the use, storage, transportation and other links. Intended Audience This document describes the basic features and safety precautions of MNO(1,2-DIMETHYL-3-NITROISOUREA, CAS:255708-80-6), with the purpose of improving the safety awareness of MNO(1,2-DIMETHYL-3-NITROISOUREA, CAS:255708-80-6) users, reducing accidents, and ensuring personal and property safety.

Keywords: 1,2-DIMETHYL-3-NITROISOUREA; N,O-Dimethyl-N'-nitroisourea; CAS: 255708-80-6; MNO; dinotefuran; insecticide

1.Harm

1.1 MNO has irritating and corrosive effects on the skin and may cause skin inflammation or burns.

1.2 MNO has an irritating effect on the eyes, which may cause eye tingling, eye congestion or corneal inflammation.

1.3 MNO can enter the human body through the mouth, nose, skin and other ways, causing damage to the respiratory system, liver, kidney and other organs, causing headache, dizziness, nausea, vomiting, etc.

1.4 MNO is subject to fire, explosion, corrosion and other hazards, and should be properly stored, transported and operated.

2.Safe operation points

2.1 Wear protective equipment such as protective gloves, safety glasses and protective masks to ensure the safety of eyes, skin and respiratory tract.

2.2 In case of burns, rinse the skin or eyes with plenty of water for at least 15 minutes and consult a doctor.

2.3 MNO should be stored in a cool, ventilated and dry place, away from direct sunlight, high temperature and pressure, fire source, etc. The storage area should be free from smoking, open flame, tinder, etc.

2.4 Operate in a well-ventilated room to avoid mixing with oxidants or other dangerous substances.

2.5 Put the MNO residue in the designated trash can to prevent leakage.

3.Emergency treatment

3.1 If you accidentally contact or inhale MNO, stop the operation immediately, quickly flee the scene, and move to a ventilated place. Seek medical attention if you experience shortness of breath or other symptoms of discomfort.

3.2 In case of burns or splashing in eyes, rinse immediately with water and seek medical treatment.

4.Maintenance maintenance

4.1 When the amount of MNO is small, it can be sealed in a sealed container. If it is stored for a long time, it should be placed in a cool, ventilated and dry place.

4.2 Unused MNO should be placed in a cool, ventilated and dry place to avoid moisture and dehydration.

4.3 Containers should be centrally stored and sealed after use to prevent environmental pollution. Expired or discarded Mnos should be disposed of in accordance with local laws and regulations.