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Product FOB Price Min.Order Supply Ability Supplier
Rhodamine B Manufacturer/High quality/Best price/In stock
Cas No: 81-88-9
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Hangzhou Dayangchem Co., Ltd. Contact Supplier
High quality Rhodamine B supplier in China
Cas No: 81-88-9
No Data No Data No Data Simagchem Corporation Contact Supplier
Basic violet 10 (C.I. 45170)
Cas No: 81-88-9
No Data No Data No Data Chemwill Asia Co., Ltd. Contact Supplier
Hot sale 81-88-9 Rhodamine B with best price
Cas No: 81-88-9
USD $ 1000.0-1500.0 / Kilogram 1 Kilogram 100 Metric Ton/Month Crovell Biotech (Hebei) Co., Ltd. Contact Supplier
TIANFU-CHEM CAS:81-88-9 Rhodamine B
Cas No: 81-88-9
No Data 1 Gram 1 Metric Ton/Day Henan Tianfu Chemical Co., Ltd. Contact Supplier
Rhodamine B
Cas No: 81-88-9
USD $ 1.0-1.5 / Gram 1 Gram 1-100 Metric Ton/Month Baowei Technology Qinhuangdao Co., Ltd Contact Supplier
Xanthylium,9-(2-carboxyphenyl)-3,6-bis(diethylamino)-, chloride (1:1)
Cas No: 81-88-9
USD $ 10.0-1000.0 / Gram 10 Gram 8000 Kilogram/Month HUBEI AOKS TRADE CO.,LTD Contact Supplier
Rhodamine B
Cas No: 81-88-9
No Data No Data No Data Xiamen Hisunny Chemical Co.,Ltd Contact Supplier
Rhodamine B CAS NO.81-88-9
Cas No: 81-88-9
No Data 10 Gram 100 Kilogram/Week Jilin Tely Imp.& Exp.Co., Ltd. Contact Supplier
Rhodamine B manufacturer
Cas No: 81-88-9
No Data No Data No Data Shaanxi Mingqi Chemical Co., Ltd Contact Supplier

81-88-9 Usage

Air & Water Reactions

Very soluble in water. Solution is bluish-red. Dilute solutions are strongly fluorescent.

Purification Methods

Major impurities are partially dealkylated compounds not removed by recrystallisation.Purify the dye by chromatography, using ethyl acetate/isopropanol/ammonia (conc)(9:7:4, RF 0.75 on Kieselgel G). It has also been crystallised from a concentrated solution in MeOH by slow addition of dry diethyl ether; or from EtOH containing a drop of conc HCl by slow addition of ten volumes of dry diethyl ether. The solid is washed with ether and air dried. The dried material has also been extracted with *benzene to remove oil-soluble material prior to recrystallisation. Store it in the dark. [Beilstein 18 II 486, 18 III/IV 8246, 19/8 V 669.]


As a dye, especially for paper; as a reagent for antimony, bismuth, cobalt, niobium, gold, manganese, mercury, molybdenum, tantalum, thallium, tungsten; as biological stain. Provisionally listed for use in drugs and cosmetics.

General Description

Green crystals or reddish-violet powder. Used as a dye, especially for paper, as a metal chelating reagent, and in drugs and cosmetics.


ChEBI: An organic chloride salt having N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium as the counterion. An amphoteric dye commonly used as a fluorochrome.

Chemical Properties

red/brown or green crystals

Reactivity Profile

Acidic organic/inorganic salts, such as Rhodamine B, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.


A useful fluorochrome for histology, FRET and mitochondrial probe.

81-88-9 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma (83689)  RhodamineB  for fluorescence 81-88-9 83689-1G 607.23CNY Detail
Sigma-Aldrich (79754)  RhodamineB  analytical standard 81-88-9 79754-25MG 603.72CNY Detail
Sigma-Aldrich (02558)  RhodamineBsolution  0.2% in isopropanol, for TLC derivatization 81-88-9 02558-500ML 1,322.10CNY Detail
Sigma-Aldrich (02558)  RhodamineBsolution  0.2% in isopropanol, for TLC derivatization 81-88-9 02558-100ML 358.02CNY Detail
Alfa Aesar (A13572)  Rhodamine B    81-88-9 1000g 2447.0CNY Detail
Alfa Aesar (A13572)  Rhodamine B    81-88-9 250g 701.0CNY Detail
Alfa Aesar (A13572)  Rhodamine B    81-88-9 50g 175.0CNY Detail
TCI America (A5102)  Rhodamine B [Ion association reagent for photometric and fluorimetric analysis]  >98.0%(T) 81-88-9 1g 370.00CNY Detail
TCI America (R0040)  Rhodamine B  >95.0%(HPLC) 81-88-9 250g 1,100.00CNY Detail
TCI America (R0040)  Rhodamine B  >95.0%(HPLC) 81-88-9 25g 250.00CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name rhodamine B

1.2 Other means of identification

Product number -
Other names AKA214

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food Additives: COLOUR
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:81-88-9 SDS

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