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CAS No 99-50-3 , 3,4-dihydroxybenzoic acid

  • Name: 3,4-dihydroxybenzoic acid
  • Synonyms: 99-50-3; protocatechuate; Benzoic acid; Protocatehuic acid;3,4-DIHYDROXYBENZOIC ACID; 4-Carboxy-1,2-dihydroxybenzene;3,4-dihydroxybenzoic acid; 3,4-dihydroxy-;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 198-202 ºC
  • Flash Point: 410.7 ºC at 760 mmHg
  • Boiling Point: 410.7 ºC at 760 mmHg
  • Density: 1.559 g/cm3
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29182990
  • Flash Point: 410.7 ºC at 760 mmHg
  • EINECS: 202-760-0
  • Molecular Weight: 154.12014
  • InchiKey: YQUVCSBJEUQKSH-UHFFFAOYSA-N
  • InChI: InChI=1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,8-9H,(H,10,11)
  • Risk Statements: S26;S37/39
  • Molecular Formula: C7H6O4
  • Molecular Structure:CAS No:99-50-3 3,4-dihydroxybenzoic acid
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99-50-3 3,4-Dihydroxybenzoic acid , 99%

  • 3,4-Dihydroxybenzoic acid CAS No.:99-50-3 Appearance:off-white crystalline powder Purity:≥99% (HPLC)
  • Min. Order: 1
  • China Nanjing CHICO Pharmaceutial Co.,LTD. [Manufacturer]
  • Tel: 86-025-84351676
  • Fax: 86-025-52261140
  • Address: No.9 Weidi Road-Jiangsu Life Science and Technology Innovation Park Nanjing,JiangsuChina
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99-50-3 3,4-Dihydroxybenzoic acid

  • China Taiyuan RHF CO., ltd. [Manufacturers]
  • Tel: 0351-7436719
  • Fax: +86-351-7436719
  • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi ,ShanXiChina
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99-50-3 3,4-DIHYDROXYBENZOIC ACID; 97%

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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99-50-3 3,4-Dihydroxybenzoic acid

  • China Watson International Ltd. []
  • Tel: +86-(512)-55117610
  • Fax: +86-(512)-55117630
  • Address: Room 1209, Asia Pacific Plaza, Huaqiao International Business Park, Kunshan, Jiangsu 215332, ,China
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99-50-3 3 4-Dihydroxybenzoic Acid

  • China XinChem Corporation [Manufacturers]
  • Tel: +86-(21)-34123252
  • Fax: +86-(21)-54153973
  • Address: 102/30, 3455 Chunshen Road, Shanghai 201100, ,ShanghaiChina
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99-50-3 3 4-Dihydroxybenzoic Acid

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99-50-3 3,4-Dihydroxybenzoic acid

  • China shanghai sphchem co.,ltd [Manufacturers]
  • Tel: +86-21-56491756 13512199871
  • Fax: 0
  • Address: NO.133, Wuye, Yangxin Road ,Shanghai China shanghai,shanghai ChinaChina
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99-50-3 3,4-Dihydroxybenzoic acid

  • China Shanghai chemrole co.,ltd [Manufacturers]
  • Tel: 021-50278900
  • Fax: 021-50278968
  • Address: No.6,bisheng road ,shanghai ,china ,ShanghaiChina
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99-50-3 3,4-Dihydroxybenzoic acid

  • China BioBioPha Co., Ltd. [Manufacturer]
  • Tel: +86-871-5217109
  • Fax: +86-871-5217109
  • Address: 132 Lanhei Road, Kunming Institute of Botany, Chinese Academy of Sciences ,China
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99-50-3 3 4-Dihydroxybenzoic Acid

  • China Jinan Haohua Industry Co., Ltd. [, Manufacturer]
  • Tel: +86-531-55569255
  • Fax: +86-531-55569299
  • Address: 40 Huayuan Rd, Jinan, Shandong 250100, jinan,shandongChina
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References of 3,4-dihydroxybenzoic acid
Title: Protocatechuic Acid
CAS Registry Number: 99-50-3
CAS Name: 3,4-Dihydroxybenzoic acid
Molecular Formula: C7H6O4
Molecular Weight: 154.12
Percent Composition: C 54.55%, H 3.92%, O 41.52%
Literature References: Minute amounts are found in wheat grains, in wheat seedlings, and in many other plants: L. H?rhammer, A. Scherm, Arch. Pharm. 288, 441 (1955). Prepd by the alkaline fusion of vanillin: Tiemann, Haarmann, Ber. 7, 617 (1874); Pearl, J. Am. Chem. Soc. 68, 2180 (1946); Org. Synth. coll. vol. III, 745 (1955).
Properties: White to brownish, cryst powder; discolors in air. d 1.54. mp ~200° with decompn. Sol in 50 parts water; sol in alcohol, ether. Keep well closed.
Melting point: mp ~200° with decompn
Density: d 1.54