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Sigma-Aldrich

ProClin™ 300

pkg of 50 mL, ProClin™ preservative for use in IVD manufacturing, CMIT/MIT 3 %

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Synonym(s):
3% solution of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-Methyl-4-isothiazolin-3-one
UNSPSC Code:
12352201
NACRES:
NA.21

Quality Level

300

form

liquid

shelf life

3 yr

contains

Alkyl Carboxylate

composition

CMIT/MIT, 3%

packaging

pkg of 50 mL

parameter

<45 °C operating temperature

color

colorless to light yellow

matrix

Modified glycol

operating pH range

2.5-8.5

pH

4.1 (100 g/L)

bp

189 °C

mp

-40 °C

solubility

water: soluble

density

1.03 g/cm3

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General description

ProClin™ preservatives are water-soluble preparations of biocides that are generally used to increase the shelf life of reagents. ProClin™ 300 comprises of 3% of 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) and 2-methyl-4-isothiazloin-3-one (MIT) in a salt-free proprietary glycol containing an alkly carboxylate stabilizer. It has a recommended working pH range as 2.5 - 8.5.

Application

For use in IVD Manufacturing
ProClin™ 300 is suitable for preparation of different buffers like ELISA buffer, sample and substrate dilution buffers for Single-Molecule Arrays (Simoa assay) and Immunoenzymatic assay. Additionally, Proclin™ may be used in preparing storage buffer to store beads coupled with coronavirus nucleocapsid protein for the serological multiplex assay.
ProClin™ biocides preservatives are immediately microstatic upon contact with microbial organisms as a result of their ability to quickly penetrate cell membranes and inhibit specific enzymes crucial to cellular respiration. Multiple specific sites of ProClin™ toxicity prevent microorganisms from developing high levels of resistance, making ProClin™ highly efficient even over extended storage periods of your IVD components.

Biochem/physiol Actions

ProClin™ products contain active substances like CMIT and MIT which inhibit the Krebs cycle at four different check points, the enzymes pyruvate dehydrogenase, α-ketoglutarate dehydrogenase, succinate dehydrogenase, and NADH dehydrogenase. The inhibition of Krebs cycle leads to effective broad-spectrum biocidal activity against bacteria, fungi, and yeast.

Legal Information

ProClin is a trademark of LANXESS Corp.

Disclaimer

The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada′s Pest Management Regulatory Agency, Turkey′s Biocidal Products Regulation, Korea′s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the concentration of active ingredients in ProClin 300?

    ProClin 300 contains a total of 3% active ingredient.

  4. What is the matrix of the ProClin 300?

    ProClin 300 is a viscous solution containing 93-95 % Modified glycol and 2-3 % Alkyl carboxylate.

  5. When would I choose to use ProClin 300?

    ProClin 300 is best used with production runs of standards, controls, and large volume buffers and solutions.  The product is quite viscous and difficult to work with when trying to measure small volumes.

  6. What are the active ingredients in ProClin 300?

    ProClin 300 contains two active ingredients: 5-Chloro-2-methyl-4-isothiazolin-3-one (CMIT, CAS RN 26172-55-4) and 2-Methyl-4-isothiazolin-3-one (MIT, CAS RN 2682-20-4).  

  7. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  8. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  9. What is the density of ProClin 300?

    The density of ProClin 300 is reported as 8.59 pounds per gallon. The specific gravity at 22°C is reported as 1.03 g/mL.

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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T cell immunity is central for the control of viral infections. To characterize T cell immunity, but also for the development of vaccines, identification of exact viral T cell epitopes is fundamental. Here we identify and characterize multiple dominant and
Limor Cohen et al.
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Rats are used as animal models for many human diseases. Cytokines can serve as biomarkers indicative of these diseases or disease states. Techniques for measuring cytokine expression levels often do not provide the sensitivity needed to measure these biomarkers in
Single Molecule Arrays for ultra-sensitive detection of rat cytokines in serum
Cohen L, et al.
Journal of Immunological Methods, 452, 20-25 (2018)
SARS-CoV-2 T-cell epitopes define heterologous and COVID-19-induced T-cell recognition
Nelde A, et al.
Research (Washington, D.C.) (2020)
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