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CAS No 451-13-8 , 2-(2,5-dihydroxyphenyl)acetic acid

  • Name: 2-(2,5-dihydroxyphenyl)acetic acid
  • Synonyms: homogentisate; Homogentisate acid; 2,5-Dihydroxy-alpha-toluic acid; Homogentisinic acid; Alcapton;2,5-Dihydroxyphenylacetic acid; 451-13-8;2-(2,5-dihydroxyphenyl)acetic acid;
  • CAS Registry Number:
  • Melting Point: 150-152 °C(lit.)
  • Flash Point: 233.6°C
  • Boiling Point: 439.3°Cat760mmHg
  • Density: 1.478g/cm3
  • Safety Statements:
    Hazard Codes Xi
    Risk Statements 36/37/38
    Safety Statements 26-36
    WGK Germany 3
    RTECS AH0589000
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 233.6°C
  • EINECS: 207-192-7
  • Molecular Weight: 168.14672
  • InchiKey: IGMNYECMUMZDDF-UHFFFAOYSA-N
  • InChI: InChI=1S/C8H8O4/c9-6-1-2-7(10)5(3-6)4-8(11)12/h1-3,9-10H,4H2,(H,11,12)
  • Risk Statements: 36/37/38
  • Molecular Formula: C8H8O4
  • Molecular Structure:CAS No:451-13-8 2-(2,5-dihydroxyphenyl)acetic acid
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451-13-8 HOMOGENTISIC ACID

  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
  • Tel: (852) 2390 2293/ (852) 2394 5546
  • Fax: (852) 2789 8314
  • Address: Unit B, 1/F., Cheong Shing Bldg.,
    17 Walnut St., Tai Kok Tsui, Kln,
    Hong Kong null,nullHong kong
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451-13-8 2,5-DIHYDROXYPHENYLACETIC ACID

  • China Nanjing Chemlin Chemical Industry Co.,Ltd. [Manufacturer]
  • Tel: +86 25 8369-7070/ +86 138 51816776 (Mobile)
  • Fax: +86 25 8345-3275
  • Address: Rm.902 Longyin Plaza,
    No. 217 Zhongshan Rd.
    (N)Nanjing 210009,China null,nullChina
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451-13-8 HOMOGENTISIC ACID; 95%

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany null,nullGermany
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451-13-8 2,5-DIHYDROXYPHENYLACETIC ACID

  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany null,nullGermany
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451-13-8 HOMOGENTISIC ACID

  • United Kingdom ProSynth Ltd [Manufacturer]
  • Tel: +44 (0)1787 883320
  • Fax: +44 (0)1787 883301
  • Address: ProSynth Ltd
    Unit 2, Bull Lane Industrial Estate
    Acton
    Sudbury
    Suffolk
    CO10 0BD
    UK null,nullUnited Kingdom
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451-13-8 1723 2,5-DIHYDROXYPHENYLACETIC ACID

  • United States Parish Chemical Company [Manufacturer]
  • Tel: (801) 226-2018
  • Fax: (801) 226-8496
  • Address: Parish Chemical Company
    PO Box 277
    Orem, UT 84059-0277 null,nullUnited States
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451-13-8 2,5-Dihydroxyphenylacetic acid

  • United States Parish Chemical Company [Manufacturers]
  • Tel: +1-(801)-226-2018
  • Fax: +1-(801)-226-8496
  • Address: P.O Box 277, Orem, Utah 84059-0277, Orem,UtahUnited States
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451-13-8 2,5-DIHYDROXYPHENYLACETIC ACID

  • United States Tripletoxygen [Manufacturer]
  • Fax: 713-666-7398
  • Address: Tripletoxygen
    P.O. Box 20650
    Houston, TX 77225-0650 null,nullUnited States
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451-13-8 HOMOGENTISIC ACID

  • United States Research Organics, Inc. [Manufacturer]
  • Tel: 216-883-8025/ 800-321-0570
  • Fax: 216-883-1576
  • Address: 4353 East 49th Street
    Cleveland, OH 44125 null,nullUnited States
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451-13-8 HOMOGENTISIC ACID(RG)

  • United States ChromaDex Inc. [Manufacturer]
  • Tel: 949-419-0288
  • Fax: 949-419-0294
  • Address: ChromaDex Inc.
    10005 Muirlands Blvd. Suite G - First Floor
    Irvine, CA 92618 null,nullUnited States
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References of 2-(2,5-dihydroxyphenyl)acetic acid
Title: Homogentisic Acid
CAS Registry Number: 451-13-8
CAS Name: 2,5-Dihydroxybenzeneacetic acid
Synonyms: 2,5-dihydroxyphenylacetic acid; 2,5-dihydroxy-a-toluic acid
Molecular Formula: C8H8O4
Molecular Weight: 168.15
Percent Composition: C 57.14%, H 4.80%, O 38.06%
Literature References: An important intermediate in metabolism of tyrosine and phenylalanine, q.q.v.. Occurs in plants and in the urine of alkaptonurics: Garrod, Inborn Errors of Metabolism (Oxford Medical Publications, London, 1923, and later). Isoln from alkaptonuric urine: M?rner, Z. Physiol. Chem. 117, 85 (1921). Synthesis from 2,5-dihydroxymandelic acid or from 2,5-dihydroxyphenylglyoxylic acid by boiling with fuming HI: Neubauer, Flatow, ibid. 52, 395 (1907). Alternate syntheses: L. DeForrest Abbott, J. D. Smith, J. Biol. Chem. 179, 365 (1949); S. B. Bostock, A. H. Renfrew, Synthesis 1978, 66; J. L. Bloomer, K. M. Damodaran, ibid. 1980, 111. Biosynthesis from tyrosine: Davies et al., J. Chem. Soc. 1964, 3126. Metabolic studies: W. E. Knox, M. LeMay-Knox, Biochem. J. 49, 686 (1951); B. N. LaDu, V. G. Zannoni, J. Biol. Chem. 217, 777 (1955).
 
Derivative Type: Monohydrate
Properties: Prisms from water. Anhydrous leaflets from hot alcohol + chloroform, mp 152°. Freely sol in water, alcohol, ether; insol in chloroform, benzene. Easily dehydrated to the lactone. Aq solns are stable.
Melting point: mp 152°
 
Derivative Type: Dimethyl ether
Molecular Formula: C10H12O4
Molecular Weight: 196.20
Percent Composition: C 61.22%, H 6.16%, O 32.62%
Properties: mp 124.5°.
Melting point: mp 124.5°
 
Derivative Type: Methyl ester dimethyl ether
Molecular Formula: C11H14O4
Molecular Weight: 210.23
Percent Composition: C 62.84%, H 6.71%, O 30.44%
Properties: mp 45°.
Melting point: mp 45°