METHANE -13C
METHANE -13C
CAS: 6532-48-5
Molecular Formula: CH4
METHANE -13C - Names and Identifiers
| Name | METHANE -13C |
| Synonyms | CH4-13C carbane-13 METHANE -13C 13C Labeled methane Methane-13C ,13C-labelled methane |
| CAS | 6532-48-5 |
METHANE -13C - Physico-chemical Properties
| Molecular Formula | CH4 |
| Molar Mass | 17.05 |
| Melting Point | −183°C(lit.) |
| Boling Point | −161°C(lit.) |
| Flash Point | -188℃ |
| Vapor Density | 0.55 (vs air) |
| Storage Condition | Room Temprature |
METHANE -13C - Risk and Safety
| Hazard Symbols | F+ - Highly flammable |
| Risk Codes | 12 - Extremely Flammable |
| Safety Description | S16 - Keep away from sources of ignition. S38 - In case of insufficient ventilation, wear suitable respiratory equipment. |
| UN IDs | UN 1971 2.1 |
| WGK Germany | 3 |
METHANE -13C - Reference Information
| methane isotope gas | methane 13C is a carbon 13-labeled methane isotope gas, methane-13C, also known as carbon -13 methane, is a stable isotope. Due to the characteristics of high safety, simplicity, non-invasive, strong sensitivity and specificity, it has gradually replaced the radioactive reagent and played an increasingly important role in the diagnosis of clinical diseases. It is favored by the medical industry at home and abroad. Methane-13c Labelled methaetidin breath test is a safe, simple, specific and quantitative method for liver function test. The method can detect the function of liver cells at the level of organelles and enzyme molecular level, including the structure, quantity, cell state, function and compensation of liver cells, so as to effectively evaluate the liver cell injury and liver function reserve of chronic liver disease. A method for the synthesis of methane-13c-labeled methane-methane-13c: 1g of methyl iodide-13C, 1.41g of acetaminophen, 2.58g of potassium carbonate, 2.58g of potassium carbonate, 1g of methyl iodide-13C, respectively, 25ml acetonitrile. After the addition was completed, the nitrogen gas was kept on, and the reaction was stirred at 25 °c for 40 hours. After the reaction is finished, the precipitate is filtered off, washed with ethyl acetate, the washing liquid and filtrate are mixed, sodium hydroxide is added and stirred for 0.5h, the liquid is separated, the collected organic layer is desolved, dried, and cyclohexane is recrystallized, activated carbon in addition to color, that is, the product. Yield 91%. The purity was 99%. The isotopic purity was 99%. |
Last Update：2024-04-09 21:32:06
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CAS: 6532-48-5
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