Laboratory toxic drugs
0. Ethidium bromide (EB): Everyone is familiar with it. It has strong mutagenic carcinogenicity. Always wear disposable gloves when using it. Pay attention to the operation specifications and do not touch other items.
1. DEPC (diethyl pyrocarbonate): smells sweet and sweet, but it does not blink! A powerful protein denaturant, and suspected to be a carcinogen. Keep the bottle away from you when you open the bottle, the internal pressure can be Causes splashing. Wear appropriate gloves, work clothes, and work in a chemical fume hood.
2. PMSF (phenylmethylsulfonyl fluoride): The boss said it is neurotoxic!!! It is a high-intensity cholinesterase inhibitor. It is very destructive to the respiratory mucosa, eyes and skin. Fatal due to inhalation, ingestion or skin absorption. Wear suitable gloves and safety glasses, always in a chemical fume hood. In case of contact, immediately rinse the glasses or skin with plenty of water, contaminated work clothes are discarded. Off.
3. Acetonitrile, which is volatile and flammable, is an irritant and chemical suffocating agent. It is away from heat and fire in the fume hood.
4. Actinomycin D, a teratogen and carcinogen, operates in a fume hood.
5.alpha-Amanita scorpion venom peptide, which is highly toxic and may be fatal.
6.NN-Methylene bisacrylamide, toxic, affects the central nervous system, do not inhale powder.
7. Methanol, toxic, can cause blindness.
8. Acetic acid (dense): May be damaged by inhalation or skin absorption. Wear gloves and goggles, preferably in a chemical fume hood.
9. Ammonium persulfate: It is more harmful to mucous membranes and upper respiratory tract, eyes and skin. Inhalation can be fatal. Wear gloves and goggles during operation. Always operate in a fume hood.
10. Barium chloride: It can be harmful to health due to inhalation, ingestion or skin absorption. Wear gloves and goggles during operation.
DTT: A strong reducing agent that emits an unpleasant smell. May be harmful to health by inhalation, ingestion or skin absorption. When using solid or high-concentration stock solutions, wear gloves and goggles and operate in a fume hood.
11. Formaldehyde: It is highly toxic and volatile. It is also a carcinogen. It is easily absorbed through the skin and has irritating and damaging effects on the eyes, mucous membranes and upper respiratory tract. Avoid as much as the volatilized aerosol. Wear gloves and goggles. Always operate in a fume hood. Keep away from heat, sparks and open flames.
12.TRIzol, irritating to the eyes, corrodes the skin. One time I accidentally spilled a small drop on my face, it immediately became red, and after a while I felt pain, only a week later. If splashed, rinse immediately with plenty of water.
Everyone in the laboratory, most of the chemical reagents exposed are harmful, UV lamps, if the centrifuge is not very good, noise pollution, VORTEX will cause the fingers to vibrate, and so on, so everyone should pay attention to protect themselves, You should not relax your attention to safety because you are saving money or for any other reason. The other is to pay attention to the standard operation, especially the microbes, do not pay attention to laboratory infection.
13. Sodium azide, toxic, blocking cytochrome electron transport system
14. Sodium fluoride, toxic and deadly, operating in a fume hood
15. Radioactive materials (when isotope-labeled), wear gloves, goggles, and overalls. It is best to buy a kit (if commercially available)
16.beta-mercaptoethanol, fatal, harmful to the respiratory tract, skin and eyes
17. Methotrexate, carcinogenic and teratogenic
18. Sodium cacodylate, carcinogenic, toxic
19. Streptomycin, carcinogenic, causing allergic reactions
20. Piperidine, toxic, has an effect on the eyes and respiratory tract, away from heat and fire
21. Putrescine, flammable, corrosive, away from heat and fire
22. Nickel sulfate, carcinogenic, causing genetic damage
23. Hey, poisonous, can explode, heat and fire in the yard
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Product Name: Beta-Carotene
Appearance: Orange Powder
CAS: 7235-40-7
Molecular formula:C40H56
Molecular weight :536.8726
Melting point: 178-179℃
Flashing point: 103℃
EINECS: 230-636-6
Specification: 1%;10%;20%;30%,50%,90%;99%
Testing Method: HPLC
Beta carotene is the molecule that gives carrots their orange colour. It is part of a family of chemicals called the carotenoids, which are found in many fruit and vegetables, as well as some animal products such as egg yolks. Biologically, beta carotene is most important as the precursor of vitamin A. It also has anti-oxidant properties and may help in preventing cancer and other diseases.
Beta Carotene is also known as a provitamin because it can be converted in our body into vitamin A after oxidative cleavage by beta carotene 15, 150-dioxygenase. In plants, beta carotene, acts as an anti-oxidant and neutralizes singlet oxygen radicals formed during photosynthesis.
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