| Product Identification | Back to Contents | 【Product Name】
Provitamine D2 | 【Synonyms】
delta-5,7,22-Ergostatrien-3beta-ol
Ergosta-5,7,22-trien-3-beta-ol
Ergosta-5:6,7:8,22:23-trien-3-ol
Ergosterin
Provitamin D
Provitamin D2 | 【CAS】
57-87-4 | 【Formula】
C28H44O | 【Molecular Weight】
396.66 | 【EINECS】
200-352-7 | 【Merck】
12,3701 | 【Beilstein/Gmelin】
2062413 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
White powder. | 【Solubility in water】
Insoluble | 【Melting Point】
162 | 【Boiling Point】
502 | 【Vapor Pressure】
4E-12 (25 C) | 【Density】
1.04 g/cm3 (20 C) | 【Partition Coefficient】
9.34 | 【Heat Of Vaporization】
88.7 kJ/mol | 【Usage】
Chemical intermediate for vitamin d2. |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. | 【Skin】
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Handling and Storage | Back to Contents | 【Storage】
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. | 【Handling】
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Inhalation】
Inhalation of dust may cause respiratory tract irritation. | 【Skin】
May cause skin irritation. | 【Eyes】
Dust may cause mechanical irritation. | 【Ingestion】
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause headache, nausea, fatigue, and dizziness. Ingestion of large amounts of vitamin D may result in hypercalcemia. |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | 【Exposure Effects】
Prolonged hypercalcemia may result in a deposition of calcium salts in the soft tissues, most significantly the kidney. |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
216 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam. Use agent most appropriate to extinguish fire. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Stability】
Stable under normal temperatures and pressures. Substance undergoes color change upon exposure to light and air. | 【Incompatibilities】
Strong oxidizing agents, acids. | 【Decomposition】
Carbon monoxide, carbon dioxide. |
|
| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Fax: |
021-67582001/03/05 |
| WebSite: |
http://chemicals.thermofisher.cn |
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