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pH Indicator Reagents

Browse our curated selection of pH Indicator Reagents from leading global manufacturers. Find research-grade reagents, certified standards, and specialty supplies backed by Cenmed's expert sourcing and technical support.

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  • ise/cond/temp 4-meter cable assembly
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    6051030-4

    ISE/Cond/Temp 4-meter cable assembly

    Price: $1,352.30
    List Price: $1,502.56
    The 6051030 pH/ORP/ISE and Conductivity combination cables ONLY work with the YSI Pro Plus and Pro1030 instruments. Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters.
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    SKU6051030-4
    MFR. NameYELLOW SPRINGS INSTRUMENT
    Catalog No. C003B-178142
    Pack Size 1 EA
    Price:
    Price: $1,352.30
    List Price: $1,502.56
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-178142
    Description
    The 6051030 pH/ORP/ISE and Conductivity combination cables ONLY work with the YSI Pro Plus and Pro1030 instruments. Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters.
  • malachite green oxalate salt (c15-1889-797)
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    M9015-25G

    MALACHITE GREEN OXALATE CERTIFIED (C005B-453191)

    Price: $123.07
    List Price: $136.75
    General description Malachite Green is a basic dye belonging to the triphenylmethane group. It is required in biology for the staining of microscopic samples, such as plant tissue, yeast and bacteria.
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    SKUM9015-25G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-453191
    Pack Size 25 GM
    Price:
    Price: $123.07
    List Price: $136.75
    Quantity:
     
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    Catalog No.
    C005B-453191
    Description
    General description Malachite Green is a basic dye belonging to the triphenylmethane group. It is required in biology for the staining of microscopic samples, such as plant tissue, yeast and bacteria.
    CAS Number
    2437-29-8
  • malachite green oxalate salt (c15-1889-798)
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    M9015-100G

    MALACHITE GREEN OXALATE CERTIFIED (C005B-453192)

    Price: $343.24
    List Price: $381.38
    General description Malachite Green is a basic dye belonging to the triphenylmethane group. It is required in biology for the staining of microscopic samples, such as plant tissue, yeast and bacteria.
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    SKUM9015-100G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-453192
    Pack Size 100 GM
    Price:
    Price: $343.24
    List Price: $381.38
    Quantity:
     
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    Product Information

    Catalog No.
    C005B-453192
    Description
    General description Malachite Green is a basic dye belonging to the triphenylmethane group. It is required in biology for the staining of microscopic samples, such as plant tissue, yeast and bacteria.
    CAS Number
    2437-29-8
  • methyl red (c15-1243-515)
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    250198-100G

    METHYL RED CRYSTALS A.C.S. REAGENT (C005B-044187)

    Price: $912.67
    List Price: $1,014.07
    Application Methyl Red has been used as pH indicator in a glucose biosensor, which is used for salivary analysis. Biochem/physiol Actions Methyl Red is a maroon red crystal azo dye.
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    SKU250198-100G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-044187
    Pack Size 100 GR
    Price:
    Price: $912.67
    List Price: $1,014.07
    Quantity:
     
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    Catalog No.
    C005B-044187
    Description
    Application Methyl Red has been used as pH indicator in a glucose biosensor, which is used for salivary analysis. Biochem/physiol Actions Methyl Red is a maroon red crystal azo dye.
    CAS Number
    493-52-7
  • methyl red (c15-1243-516)
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    250198-25G

    METHYL RED CRYSTALS A.C.S. REAGENT (C005B-044188)

    Price: $320.49
    List Price: $356.10
    Application Methyl Red has been used as pH indicator in a glucose biosensor, which is used for salivary analysis. Biochem/physiol Actions Methyl Red is a maroon red crystal azo dye.
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    SKU250198-25G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-044188
    Pack Size 25 GR
    Price:
    Price: $320.49
    List Price: $356.10
    Quantity:
     
    The item has been added

    Product Information

    Catalog No.
    C005B-044188
    Description
    Application Methyl Red has been used as pH indicator in a glucose biosensor, which is used for salivary analysis. Biochem/physiol Actions Methyl Red is a maroon red crystal azo dye.
    CAS Number
    493-52-7
  • methyl red sodium salt (c15-1284-495)
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    114502-100G

    METHYL RED SODIUM SALT A.C.S. REAGENT (C005B-082384)

    Price: $354.37
    List Price: $393.75
    Biochem/physiol Actions Methyl Red is a pH indicator and it changes color at a pH of 5.5.
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    SKU114502-100G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-082384
    Pack Size 100 GR
    Price:
    Price: $354.37
    List Price: $393.75
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    Catalog No.
    C005B-082384
    Description
    Biochem/physiol Actions Methyl Red is a pH indicator and it changes color at a pH of 5.5.
    CAS Number
    845-10-3
  • methyl red sodium salt (c15-1284-496)
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    114502-25G

    METHYL RED SODIUM SALT A.C.S. REAGENT (C005B-082385)

    Price: $142.16
    List Price: $157.96
    Biochem/physiol Actions Methyl Red is a pH indicator and it changes color at a pH of 5.5.
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    SKU114502-25G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-082385
    Pack Size 25 GR
    Price:
    Price: $142.16
    List Price: $157.96
    Quantity:
     
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    Product Information

    Catalog No.
    C005B-082385
    Description
    Biochem/physiol Actions Methyl Red is a pH indicator and it changes color at a pH of 5.5.
    CAS Number
    845-10-3
  • p-rosolic acid (c15-1251-666)
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    861324-100G

    P-ROSOLIC ACID DYE CONTENT 84% (C005B-051553)

    Price: $641.66
    List Price: $712.95
    p-Rosolic acid (C.I.
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    SKU861324-100G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-051553
    Pack Size 100 GR
    Price:
    Price: $641.66
    List Price: $712.95
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    Catalog No.
    C005B-051553
    Description
    p-Rosolic acid (C.I.
    CAS Number
    603-45-2
  • p-rosolic acid (c15-1251-667)
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    861324-25G

    P-ROSOLIC ACID DYE CONTENT 84% (C005B-051554)

    Price: $233.27
    List Price: $259.19
    p-Rosolic acid (C.I.
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    SKU861324-25G
    MFR. NameSigma-Aldrich
    Catalog No. C005B-051554
    Pack Size 25 GR
    Price:
    Price: $233.27
    List Price: $259.19
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    Catalog No.
    C005B-051554
    Description
    p-Rosolic acid (C.I.
    CAS Number
    603-45-2
  • pcp 534 tris buffer ph probe
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    99960-39"

    PCP 534 TRIS BUFFER PH PROBE

    Price: $465.23
    List Price: $516.92
    PCP 534 TRIS BUFFER PH PROBE
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    SKU99960-39"
    Catalog No. C020B-012592
    Pack Size 1 EA
    Price:
    Price: $465.23
    List Price: $516.92
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    Catalog No.
    C020B-012592
    Description
    PCP 534 TRIS BUFFER PH PROBE
  • ph 4 pint
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    127

    pH 4 Pint

    Price: $110.77
    List Price: $123.08
    pH 4 Pint
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    SKU127
    MFR. NameWaters Corporation
    Catalog No. C042B-000037
    Pack Size 1 EA
    Price:
    Price: $110.77
    List Price: $123.08
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    Catalog No.
    C042B-000037
    Description
    pH 4 Pint
  • ph sensor diffl slfpwrd preamp
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    27400-69

    PH SENSOR DIFFL SLFPWRD PREAMP

    Price: $1,621.68
    List Price: $1,801.87
    PH SENSOR DIFFL SLFPWRD PREAMP
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    SKU27400-69
    MFR. NameAntylia Scientific
    Catalog No. C020B-003201
    Pack Size 1 EA
    Price:
    Price: $1,621.68
    List Price: $1,801.87
    Quantity:
     
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    Product Information

    Catalog No.
    C020B-003201
    Description
    PH SENSOR DIFFL SLFPWRD PREAMP
Related Categories
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About pH Indicator Reagents

Cenmed Enterprises provides a comprehensive selection of pH Indicator Reagents products sourced from leading global manufacturers. Our catalog spans research-grade reagents, certified standards, and specialty compounds used across clinical, academic, and industrial laboratories worldwide.

With decades of expertise in laboratory supply distribution, we offer competitive pricing, reliable stock availability, and dedicated technical support. Whether you need small quantities for research or bulk orders for manufacturing, our team is ready to assist with sourcing, compliance documentation, and logistics.

Frequently Asked Questions

  • What documentation is provided with orders?

    All orders include a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a packing slip. Additional regulatory or compliance documentation can be requested at the time of order for products requiring special handling or import/export certification.

  • What is the minimum order quantity?

    Minimum order quantities vary by product and are listed on each product page. For bulk or custom quantity orders, please contact our sales team at 732-447-1100 or request a quote online for custom pricing.

  • How long does shipping take?

    Standard orders ship within 1–3 business days from our New Jersey distribution center. Expedited and international shipping options are available. Hazardous materials ship in compliance with IATA/DOT regulations and may require additional lead time.

  • Can I return a product?

    We accept returns on non-hazardous, unopened products within 30 days of delivery. Controlled substances, refrigerated items, and custom orders are non-returnable. To initiate a return, please complete the return request form and submit it to our customer service team for approval. Returns will be processed once your request has been reviewed and authorized.

  • Do you offer volume discounts?

    Yes. Volume pricing is available for most products in our catalog. Contact our sales team or use the "Request a Quote" feature to get custom pricing for your organization based on your annual purchase volume and specific product needs.

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