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Methylene blue

BGC Id:130096217962
CAS No:61-73-4
Synonyms:ci no 52015 ; methylenebluegr ; methylene blue ; ci basic blue 9 ; basic blue 9 ; swiss blue ; s no 1038 ; ci 52015 ; chromosmon ; d&cblueno.1
Molecular Formula:C16H18ClN3S
Molecular Weight:319.85
EINECS:200-515-2
Structural Formula

Verified providers in 2025

The following 13 notable providers have been checked and can be recommended.
Chemical-Suppliers
Senzhuo Industry
Purity : 98% Spec 1 : Green to brown powder Application : Used for dyeing cotton, acrylic, linen, and silk, as well as for dyeing paper, bamboo and wood, as well as manufacturing ink and color lakes. It can also be used for dyeing biological bacterial tissues.
Chemical-Suppliers
Unilong Industry
  • λmax : 661 nm
  • Density : 1.0 g/mL at 20 °C
  • Melting point : 190 °C (dec.)(lit.)
  • Storage conditions : room temp
  • Purity : 98%
  • pKa : 2.6, 11.2(at 25℃)
  • Chemical-Suppliers
    Sancai Industry
    Content 98.5% min Solubility in ethanol Pass sensitivity test Pass Burning residue (in sulfate) 0.5%Max

    The last intensive check and update was carried out on 2025/11/10.

    Identify

    Synonyms:
    ci no 52015 ; methylenebluegr ; methylene blue ; ci basic blue 9 ; basic blue 9 ; swiss blue ; s no 1038 ; ci 52015 ; chromosmon ; d&cblueno.1
    CAS:
    61-73-4
    EINECS:
    200-515-2
    Molecular Formula:
    C16H18ClN3S
    MDL:
    MFCD00012111

    Properties

    Molecular Weight:
    319.85 g·mol−1
    Density:
    1.0 g/mL at 20 °C
    Melting point:
    190 °C (dec.)(lit.)
    Flash point:
    45 °C

    Suppliers

    AXO Industry SA

    Distributor of pharmaceutical, nutraceutical, cosmetic and food raw materials. The raw material in bulk or in tailor-made packings.
    Country: Belgium   Phone: +32 10 24 67 28   Telefax: +32 10 24 59 12

    Senzhuo Industry Co.,Ltd

    Country: P.R.China
    Phone: +86-15165036020
    Telefax: +86-88902568
    Senzhuo Industry Co., Ltd. (“Senzhuo”) established in 2009, is a key chemical manufacturer and supplier in China. We are engaged in supply high quality pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. We also customize high value-added chemicals and intermediates for the customer. Senzhuo industy Co.,Ltd factory located in both Zhangqiu industrial zone and Jiangshu industrial zone. Sales office in Jinan city ...

    Refine Chemical Co.,Ltd.

    Refine Chemical Co.,Ltd. is a manufacturer and exporter for chemical material. We have diversified activities in R&D, application development, production, sales and also trading. Our factory was established in September of year 2000 with total area 150,000 square meters, we specialize in the business of organic intermediate, daily chemical, chemical additive, and fine chemicals. Refine Chemical Co.,Ltd. also offers Diacetyl. Our company has passed ISO9001, ISO14001 quality and environmental management system certification ...
    Company type: Producer
    Country: P.R.China
    Phone: +86 15665752805
    Telefax: +86 15665752805

    Unilong Industry Co.,Ltd

    Company type: Bulk chemical producer
    Unilong Industry Co.,Ltd. is a growing high-tech chemical enterprise, and located in chemical industrial park of Shandong province. Now Unilong company already is a world leading professional manufacturer and distributor for fine chemicals materials. We supply our chemical product Pygeum africanum extract. With the development of society, more and more people pay more attention to environmental health.In recent years, we are engaging to expand new materials field and also set up a researching team, particularly for the fields o ...
    Country: P.R.China   Phone: +86-15668417750   Telefax: +86-531-55690079

    Sancai Industry Co.,Ltd.

    Company type: Leading producer
    Country: P.R.China
    Phone: +86-531-88913079
    Telefax: +86-531-88913079
    Sancai Industry is involved in supplying of fine chemicals, food and nutrition,personal care, medical intermediate etc, We can also customize chemicals for our customers.Taking advantage of innovative technology and excellent talents and through over 15 years of development,We have stabled good relation with clients in and abroad. Additionally N,N-Dimethylformamide is supplied by us. In order to be competitive on the market. We have established the global marketing network, independent research center, testing center, and key ...

    Shandong Lanhai Industry Co.,Ltd.

    Shandong Lanhai Industry Co., Ltd established in 2015. The headquartered located in the beautiful Spring city Jinan. The company's factory is located in Coal Chemical Industrial Park, Juye County, Heze City Shandong province.Lanhai Industry is a high-tech enterprise in Shandong Province. Additionally 1,2-O-Isopropylidene-alpha-D-glucofuranose is supplied by us. The company integrates science, industry and trade, specializing in the research, development, production and operation of fluorosilicone products, OLED intermediates and agricultural fertili ...
    Company type: Producer
    Country: P.R.China
    Phone: +86-15953182965

    Lori Industry Co., Ltd

    Company type: Bulk chemical producer
    Lori industry Co., Ltd was established in 2002 years. Additionally Polyglyceryl-6 dicaprate is supplied by us. It is a large-scale manufacturer integrating R&D, produce and sales. Our products mainly cover fine chemicals, organic intermediates, biological buffers, agricultural fertilizers and other chemicals . Among them, the sales proportion of organic chemicals and agricultural fertilizers is at the forefront of the domestic market. From 2013 to 2022 years, through cooperation with foreign trade companies, customers visitation, ...
    Country: P.R.China   Phone: +86-13011713125   Telefax: +86-13011713125

    Finetech Industry Limited

    Company type: Producer
    Country: P.R.China
    Phone: +86-27-8746 5837
    Telefax: +86-27-8777 2287
    Finetech Industry Limited is a company in England,which specializing in developing, manufacturing and marketing fine organic compounds and intermediates for the pharmaceutical industry. Most of our products were exported to the North America, Europe and Oceania. We are supplier of 4-Bromo-2-nitrobenzaldehyde. Our factory is in China,we supply Fluorochemicals, Pyrimidines, Pyridines, Amines, Nitriles, Carboxylic Acids or Ester, Phenols or Alcohols, Aldehydes, Piperidines, Piperazines, Pyrazines, Boric Acids, Amino Acids, ...

    Shandong SanYoung Industry Co., Ltd

    Shandong SanYoung Industry Co., Ltd is a scientific and technological company specializing in research and development, cooperative production and sales of chemical products. We are seller of 2-Chloro-7H-pyrrolo[2,3-d]pyrimidine. The company's main products include: photoinitiator; light stabilizer; polymer retardant; ultraviolet absorbent; fine chemical products and pharmaceutical intermediates, we can also customize chemicals for our customers. Our company has a large number of customers with good reputation at home and abroad, ...
    Country: P.R.China
    Phone: +86 155-64526813
    Telefax: +86 531-56897532

    Xingrui Industry Co., Limited

    Company type: Leading producer
    Xingrui Industry CO., LTD. is a professional manufacturing enterprise integrating R&D, production and sales. The products involved fine chemicals, pharmaceutical intermediates, dye intermediates, cosmetic raw materials and so on. The company is ranked among the outstanding producers in the fine chemical industry. Additionally Tungsten(IV) sulfide is supplied by us. Xingrui Industry always strive to be the most reliable partner of our customers, and strive to build a customer-trusted, socially respected, world-class fine chemi ...
    Country: P.R.China   Phone: +86-531-88980365   Telefax: +86-531-88980365

    Xiamen Equation Chemical Co.,Ltd

    Company type: Bulk chemical producer
    Country: P.R.China
    Phone: +86 592 6515854
    Telefax: +86 592 6515854
    Welcome to Equation chemical, your reliable partner in China as an important supplier of bulk specialty chemicals for industry & life science. We are supplier of 4-Chloro-2,6-difluorobenzyl bromide. We are committed to provide experienced high quality product and JIT performance to benefit our customers.

    Skyrun Industrial Co., Ltd.

    Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. Additionally 1-(3-Methyl-pyridin-2-yl)piperazine is supplied by us. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial produc ...
    Company type: Leading producer
    Country: P.R.China
    Phone: +86-576-84015261
    Telefax: +86-576-84015261

    BIOZOL Diagnostica Vertrieb GmbH

    Company type: Supplier of chemical products
    Chemos®, a subsidiary of BIOZOL Diagnostica Vertrieb GmbH, is a leading supplier of ready to use solutions for the lab and chemical industry. We sell 6-Bromobenzo[d]oxazole as well. We are producing reagents and standards for the analytical lab and supplying raw materials for the chemical and pharmaceutical industry. The base of our solutions are a portfolio of ~ 200.000 raw materials where ~ 50.000 are already available for R+D ready to order in our shop. We are supplying and producing lab quantities from tiny qua ...
    Country: Germany   Phone: +49-871-966346-0   Telefax: +49-871-966346-13

    Safety Information

    Hazard Classes:
    Risk Codes:
    10-41-22-20/21/22 (R)
    Safety Codes:
    26-39-36 (S)
    WGK Germany:
    3
    RID / ADR:
    UN 1993 3 / PG 3
    RTECS:
    SP5740000
    Storage temperature:
    Store at RT

    What other providers are available for CAS 61-73-4?

    In addition to the providers presented here for Methylene blue with the CAS number 61-73-4, there are other 37 providers with slightly different product names available for this CAS number.

    Leap Chem Co., Ltd | BIOZOL Diagnostica Vertrieb GmbH +15 additional providers that we know from the past
    AK Scientific, Inc. +2 additional providers that we know from the past
    +2 additional providers that we know from the past
    +6 additional providers that we know from the past
    +3 additional providers that we know from the past
    +2 additional providers that we know from the past
    BLD Pharmatech Ltd +1 additional providers that we know from the past




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