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  2. Phloroglucinol - Wikipedia

    en.wikipedia.org/wiki/Phloroglucinol

    Phloroglucinol is an organic compound with the formula C 6 H 3 (OH) 3. It is a colorless solid. It is used in the synthesis of pharmaceuticals and explosives. Phloroglucinol is one of three isomeric benzenetriols. The other two isomers are hydroxyquinol (1,2,4-benzenetriol) and pyrogallol (1,2,3-benzenetriol).

  3. Mesitylene - Wikipedia

    en.wikipedia.org/wiki/Mesitylene

    Mesitylene or 1,3,5-trimethylbenzene is a derivative of benzene with three methyl substituents positioned symmetrically around the ring. The other two isomeric trimethylbenzenes are 1,2,4-trimethylbenzene (pseudocumene) and 1,2,3-trimethylbenzene (hemimellitene). All three compounds have the formula C 6 H 3 (CH 3) 3, which is commonly ...

  4. Trihydroxybenzenes - Wikipedia

    en.wikipedia.org/wiki/Trihydroxybenzenes

    The trihydroxybenzenes (or benzenetriols) are organic compounds with the formula C 6 H 3 (OH) 3. Also classified as polyphenols, they feature three hydroxyl groups substituted onto a benzene ring. They are white solids with modest solubility in water. [1] The enzyme pyrogallol hydroxytransferase uses benzene-1,2,3,5-tetrol and benzene-1,2,3 ...

  5. Telephone numbers in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_the...

    The Philippines is assigned an international dialing code of +63 by ITU-T. Telephone numbers are fixed at eight digits for area code 02, and seven digits for area codes from 03X to 09X, with area codes fixed at one, two, or three digits (a six-digit system was used until the mid-1990s; four to five digits were used in the countryside). Mobile ...

  6. Trimesic acid - Wikipedia

    en.wikipedia.org/wiki/Trimesic_acid

    Trimesic acid, also known as benzene-1,3,5-tricarboxylic acid, is an organic compound with the formula C 6 H 3 (CO 2 H) 3. It is one of three isomers of benzenetricarboxylic acid . [ 3 ] A colorless solid, trimesic acid has some commercial value as a precursor to some plasticizers .

  7. Trimethylbenzene - Wikipedia

    en.wikipedia.org/wiki/Trimethylbenzene

    Trimethylbenzene. The trimethylbenzenes constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with three methyl groups (–CH 3) as a substituent. [1] [2] Through their different arrangement, they form three structural isomers with the molecular formula C 9 H 12.

  8. 1,3,5-Trichlorobenzene - Wikipedia

    en.wikipedia.org/wiki/1,3,5-Trichlorobenzene

    1,3,5-Trichlorobenzene is an organochlorine compound. It is one of the three isomers of trichlorobenzene. Being more symmetrical than the other isomers, it exists as colourless crystals whereas the other isomers are liquids at room temperature. It is not formed upon chlorination of benzene. Instead it is prepared by the Sandmeyer reaction from ...

  9. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.