Yahoo奇摩 網頁搜尋

  1. 杏仁酸 相關

    廣告
  2. 兩件47折買了絕對不後悔!有果深層乳液坐鎮,前胸後背的惱人顆粒、臉上的粗孔粉刺通通滾邊去. 果煥膚霸主YYDS!添加15%甘醇,養皮超有感,持續使用不只顆粒變少了,肌膚更是滑嫩出新高度

搜尋結果

  1. Mandelic acid is an aromatic alpha hydroxy acid with the molecular formula C 6 H 5 CH (OH)CO 2 H. It is a white crystalline solid that is soluble in water and polar organic solvents. It is a useful precursor to various drugs. The molecule is chiral. The racemic mixture is known as paramandelic acid . Isolation, synthesis, occurrence.

    • C₈H₈O₃
    • 152.149 g·mol−1
    • 119 °C (246 °F; 392 K) optically pure: 132 to 135 °C (270 to 275 °F; 405 to 408 K)
    • 15.87 g/100 mL
  2. en.wikipedia.org › wiki › Amino_acidAmino acid - Wikipedia

    Structure of a typical L-alpha-amino acid in the "neutral" form Amino acids are organic compounds that contain both amino and carboxylic acid functional groups.[1] Although over 500 amino acids exist in nature, by far the most important are the 22 α-amino acids incorporated into proteins.[2] Only these 22 appear in the genetic code of life.[3 ...

  3. en.wikipedia.org › wiki › Acetic_acidAcetic acid - Wikipedia

    Properties. Production. Uses. Reactions. Health and safety. See also. Notes. References. External links. Acetic acid / əˈsiːtɪk /, systematically named ethanoic acid / ˌɛθəˈnoʊɪk /, is an acidic, colourless liquid and organic compound with the chemical formula CH3COOH (also written as CH3CO2H, C2H4O2, or HC2H3O2 ).

  4. en.wikipedia.org › wiki › Vitamin_CVitamin C - Wikipedia

    Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits, berries and vegetables. It is also a generic prescription medication and in some countries is sold as a non-prescription dietary supplement.

  5. en.wikipedia.org › wiki › Citric_acidCitric acid - Wikipedia

    Citric acid is an organic compound with the chemical formula HOC(CO2H)(CH2CO2H)2.[10] It is a colorless weak organic acid.[10] It occurs naturally in citrus fruits. In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms.[10] More than two million tons of citric acid are ...

  6. en.wikipedia.org › wiki › AdrenalineAdrenaline - Wikipedia

    Adrenaline, also known as epinephrine, is a hormone and medication[7][8] which is involved in regulating visceral functions (e.g., respiration).[7][9] It appears as a white microcrystalline granule.[10] Adrenaline is normally produced by the adrenal glands and by a small number of neurons in the medulla oblongata.[11] It plays an essential ...

  7. Monosodium glutamate (MSG), also known as sodium glutamate, is a sodium salt of glutamic acid. MSG is found naturally in some foods including tomatoes and cheese in this glutamic acid form.[2][3][4] MSG is used in cooking as a flavor enhancer with a savory taste that intensifies the meaty, savory flavor of food, as naturally occurring ...

  1. 其他人也搜尋了