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Home > Encyclopedia > BromocresolPurple

BromocresolPurple

BromocresolPurple structure
  • CAS No:

    115-40-2

  • Formula:

    C21H16Br2O5S

  • Synonyms:

    BCP;bromocresol;M.W.540.24;Bromocresolred;BROMCRESOLPURPLE;BromocresolPurpbe;BROMOCRESOLPURPLE;BroMocresolpurole;pourpredebromocresol;BROMOCRESOLPURPLETS

  • China Export:

    From 2018.11 to 2019.11, total export volume of BromocresolPurple from China was 64,534,318KG while total export value was $1,953,812,763. The biggest proportion of exporting volume in the last 12 months was 11.30% in 2019.03.

  • Categories:

    Biochemical Engineering  >  Biochemical Reagents

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Basic Attributes

  • 115-40-2

  • C21H16Br2O5S

  • 540.22

  • 537.908508

  • 92.21000

  • 5.92

  • 204-087-8

  • ABIUHPWEYMSGSR-UHFFFAOYSA-N

  • 5

  • 2

  • 2

Characteristics

  • Purplish-brown Solid

  • 1.8±0.1 g/cm3

  • 240 °C (dec.)(lit.)

  • 590.2±50.0 °C at 760 mmHg

  • 36 °C

  • 1.695

  • Practically insoluble in water;ethanol: soluble 1mg/mL

  • Store at RT.

  • 1.15X10-15 mm Hg at 25 deg C (est)

  • 359618

  • Stable. Incompatible with strong oxidizing agents.

Safety Information

  • 29349990

  • UN19933/PG3

  • 3

  • 36/37/38-10-20/21/22

  • 26-36-37/39-16

  • Xi,Xn

  • P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

  • H315

Usage

As indicator, pH 5.2 yellow; pH 6.8 purple.

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Production Methods

Dissolve o-toluidine in dilute sulfuric acid, cool, add sodium nitrite solution with stirring, and control the reaction temperature below 5°C. After the reaction is completed, heat to 40-50°C until no bubbles occur, cool and filter, and refine the o-cresol by fractional distillation. Mix o-cresol with o-toluenesulfonic anhydride and zinc chloroform, stir and heat, react at 115-120℃ for 7h, remove the remaining o-cresol by steam, and filter to obtain o-cresol red: o-cresol red is dissolved after purification Glacial acetic acid, add the mixed solution of bromine and glacial acetic acid under stirring. After the addition is complete, heat at 40-50℃ for 4h, cool and filter to obtain bromocresol purple.

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China BromocresolPurple Export Data

Data referenced from General Administration of Customs,P.R.China

2018.11-2019.11 China - America  BromocresolPurple Export Data

From 2018.11 to 2019.11, total export volume of BromocresolPurple from China to America was 7,780,901KG while total export value was $316,380,773. The biggest proportion of exporting volume in the last 12 months was 14.00% in 2019.01.

2018.11-2019.11 China BromocresolPurple Export Data

From 2018.11 to 2019.11, total export volume of BromocresolPurple from China was 64,534,318KG while total export value was $1,953,812,763. The biggest proportion of exporting volume in the last 12 months was 11.30% in 2019.03.

2018.11-2019.11 TOP10 Purchasing Countries' Export Data of Chinese BromocresolPurple

From 2018.11 to 2019.11, China has exported BromocresolPurple to 122 countries in total. Country ranks by import volume from high to low is India, America, Brazil, Korea, Japan, Indonesia, Russia, Italy, Vietnam, Germany. The highest export volume was China to India, accounting for 15.49% of the total volume of China.

Check Export Data for More Purchasing Countries

Purchasing Country Export Volume(KG) Export Percentage Export Value($)

India

18,470,088

15.49%

284,654,978

America

7,780,901

6.52%

316,380,773

Brazil

3,482,706

2.92%

56,330,619

Korea

3,279,208

2.75%

118,103,066

Japan

2,776,083

2.33%

104,179,065

Indonesia

2,652,708

2.22%

20,390,824

Russia

2,523,632

2.12%

71,402,429

Italy

1,949,908

1.64%

84,261,295

Vietnam

1,535,844

1.29%

30,876,165

Germany

1,414,521

1.19%

66,834,261

Netherlands

1,407,723

1.18%

40,043,364

Taiwan

1,336,285

1.12%

20,935,258

Belgium

1,300,937

1.09%

43,926,617

Mexico

1,203,788

1.01%

45,215,734

Pakistan

1,101,382

0.92%

39,507,765

Iran

1,044,291

0.88%

28,504,479

Turkey

905,770

0.76%

27,893,056

Singapore

780,141

0.65%

50,171,634

Thailand

719,956

0.60%

8,501,101

Australia

607,935

0.51%

14,879,125

Israel

588,856

0.49%

17,159,090

South Africa

575,310

0.48%

11,039,850

United Kingdom

501,238

0.42%

39,994,256

Malaysia

492,812

0.41%

5,439,297

Spain

446,770

0.37%

28,670,245

United Arab Emirates

304,282

0.26%

3,897,959

Canada

302,332

0.25%

21,196,696

Colombia

267,830

0.22%

8,161,669

Poland

267,574

0.22%

13,242,033

Slovenia

248,588

0.21%

18,698,953

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