Congo red


Congo red is an organic compound. It is an azo dye.

Available options

Product Specifications

Congo red is an organic compound, the sodium salt of 3,3′-([1,1′-biphenyl]-4,4′-diyl)bis(4-aminonaphthalene-1-sulfonic acid). It is an azo dye. Congo red is water-soluble, yielding a red colloidal solution; its solubility is greater in organic solvents. However, the use of Congo red has long been abandoned, primarily because of its carcinogenic properties.

Available Options

SKU Description /size Stocks Unit Price (RM) Quantity

SKU: 6195-00

R&M 6195-00 Congo Red, C.I.22120, “RMstain” 25g

5 units left

R&M 6195-00 Congo Red, C.I.22120, “RMstain” 25g 5 units left RM 79.00 RM 79.00

SKU: 6195-01

R&M 6195-01 Congo Red, 0.1% w/v alcoholic Soln., “RMstain” 500ml

5 units left

R&M 6195-01 Congo Red, 0.1% w/v alcoholic Soln., “RMstain” 500ml 5 units left RM 66.00 RM 66.00

SKU: 1013400025

Merck 1013400025 Congo red (C.I. 22120) indicator Reag. Ph Eur 25g

6 units left

Merck 1013400025 Congo red (C.I. 22120) indicator Reag. Ph Eur 25g 6 units left RM 530.00 RM 530.00