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methylene    音標拼音: [m'ɛθɪl,in]
n. 亞甲基

亞甲基

methylene
n 1: the bivalent radical CH2 derived from methane [synonym:
{methylene group}, {methylene radical}, {methylene}]

Methylene \Meth"yl*ene\, n. [F. m['e]thyl[`e]ne, from Gr. ? wine
? wood; -- a word coined to correspond to the name wood
spirit.] (Chem.)
A divalent hydrocarbon radical, {-CH2-}, not known in the
free state, but regarded as an essential residue and
component of certain derivatives of methane; as, methylene
bromide, {CH2Br2}; -- formerly called also {methene}.
[1913 Webster]

{Methylene blue} (Chem.), an artificial dyestuff consisting
of a complex sulphur derivative of diphenyl amine; --
called also {pure blue}.
[1913 Webster]

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英文字典中文字典相關資料:
  • Methylene (compound) - Wikipedia
    The formula of the methylene molecule (CH 2) was mentioned as part of a Disney comic by the Donald Duck character in a 1944 story called The Mad Chemist by Carl Barks, in a humorous vein
  • What to know about methylene blue - Harvard Health
    Once used to treat malaria, methylene blue is gaining attention for a range of health-related uses Learn where it started, how it works, and what the evidence says about its safety and benefits
  • Methylene | CH2 | CID 123164 - PubChem
    Methylene | CH2 | CID 123164 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety hazards toxicity information, supplier lists, and more
  • Is Methylene Blue Safe? Risks and Side Effects - ScienceInsights
    Methylene blue is safe when used at approved doses under medical supervision, but it carries real risks for specific groups of people and interacts dangerously with common medications
  • Methylene Blue: What It Is, How It Works Safety
    Discover what methylene blue is, how it supports cellular energy and redox balance, and why pharmaceutical-grade purity matters Learn safely with Better Life Lab
  • Methylene - NIST Chemistry WebBook
    Leopold, Murray, et al , 1985 Leopold, D G ; Murray, K K ; Miller, A E S ; Lineberger, W C , Methylene: A study of the X3B1 and the 1A1 states by photoelectron spectroscopy of CH2- and CD2-, J Chem Phys , 1985, 83, 4849 [all data]
  • Methylene Group: Structure, Formula, and Reactions
    The methylene group consists of one carbon atom bonded to two hydrogen atoms and connected to the rest of the molecule by two single sigma (σ) bonds It is represented by the formula –CH2– and commonly acts as a linking or bridging unit between two atoms, most often carbon atoms, within a molecule [1-4]
  • What is Methylene? - BYJUS
    What is Methylene? Methylene is a diatomic radicle forming ethers analogous to those of ethylene The chemical formula of methylene is CH2 Methylene is fluid-like chloroform in appearance and odour, but differing in its boiling point and its specific gravity
  • METHYLENE Definition Meaning - Merriam-Webster
    The meaning of METHYLENE is a divalent hydrocarbon group CH2 derived from methane
  • Methylene (compound)
    Methylene, also known as methylidene, is the simplest carbene, an uncharged organic compound with the chemical formula :CH₂ (or CH₂), featuring a divalent carbon atom bonded to two hydrogen atoms and bearing two non-bonding electrons





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