Search results
Results from the WOW.Com Content Network
In strongly basic solutions, phenolphthalein is converted to its In(OH) 3− form, and its pink color undergoes a rather slow fading reaction [6] and becomes completely colorless when pH is greater than 13. The pK a values of phenolphthalein were found to be 9.05, 9.50 and 12 while those of phenolsulfonphthalein are 1.2 and 7.70. [2]
The phthalide core is found a variety of more complex chemical compounds including dyes (such as phenolphthalein), fungicides (such as tetrachlorophthalide, often referred to simply as "phthalide"), and natural oils (such as butylphthalide).
In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (−O H) bonded directly to an aromatic hydrocarbon group. [1] The simplest is phenol, C 6 H 5 OH. Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the ...
WURCS GlycoCT PubChem CID G "Glycan Repository". 122194 Gmelin Gmelin database: Elsevier: inorganic and organometallic compounds closed access 1,500,000 G-SRS Global Substance Registration System: CAS PubChem ChEMBL INN UNII "G-SRS". 109,260 GMD Golm Metabolome Database GC/MS of metabolites "GMD". Guide to PHARMACOLOGY IUPHAR: drugs and targets
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
1,10-Phenanthroline (phen) is a heterocyclic organic compound. It is a white solid that is soluble in organic solvents. The 1,10 refer to the location of the nitrogen atoms that replace CH's in the hydrocarbon called phenanthrene. Abbreviated "phen", it is used as a ligand in coordination chemistry, forming strong complexes with most metal ions.
c 6 h 4 (ch 3) 2 + 7 + 1 / 2 o 2 → c 4 h 2 o 3 + 4 h 2 o + 4 co 2 Phthalic anhydride and maleic anhydride are recovered by distillation by a series of switch condensers . The naphthalene route (the Gibbs phthalic anhydride process or the Gibbs–Wohl naphthalene oxidation reaction) has declined relative to the o -xylene route.
(Reuters) -Elon Musk's SpaceX is preparing to launch a tender offer in December to sell existing shares at a price of $135 per share, two sources familiar with the matter said. The tender offer ...