20X SSC Buffer (Saline-Sodium Citrate), pH 7.0 – Hybridization & Blotting Buffer (BZ231)

Price range: $17.00 through $45.00

20X SSC (Saline-Sodium Citrate) Buffer, pH 7.0 BZ231

Product Code: BZ231
Manufacturer: Biochemazone
Available Pack Sizes: 100 mL, 200 mL, 500 mL, 1 L
Custom Bulk Quantities Available

Product Overview

Biochemazone 20X SSC Buffer BZ231 is a concentrated saline-sodium citrate solution, the standard buffer for nucleic acid hybridization and stringency washes. It is diluted to 6X, 2X, 0.5X or 0.1X SSC for Southern and Northern blotting, in situ hybridization, FISH and microarray work.

20X SSC contains 3 M sodium chloride and 0.3 M trisodium citrate at pH 7.0. Sodium ions neutralise the negative charge of the nucleic acid backbone so that probe and target can hybridise, and lowering the SSC concentration in wash steps raises stringency and removes non-specifically bound probe. 20X SSC is also used to keep agarose gels moist during capillary or vacuum transfer.

pH 7.4 and pH 5.3 versions are made on request. Each batch is prepared with ISO 3696 compliant high-purity water under Biochemazone’s ISO 9001 / GMP quality system.

Key Features & Benefits

✅ 20X Concentrate – Dilute to 6X, 2X, 0.5X or 0.1X as needed
✅ pH 7.0 – Standard hybridization pH
✅ Controls Stringency – Lower SSC strength for higher-stringency washes
✅ Blotting Transfer Buffer – For capillary and vacuum transfers
✅ Simple Recipe – Sodium chloride and sodium citrate only
✅ Other pH Versions – pH 7.4 and pH 5.3 on request
✅ ISO 3696 Grade Water – Prepared using high-purity laboratory water
✅ Made in Canada – Manufactured under ISO 9001 / GMP quality systems

Applications

🧬 Hybridization
• Southern and Northern blotting
• In situ hybridization and FISH
• Microarray hybridization and washes

🧪 Blotting
• Capillary and vacuum transfer buffer
• Membrane rinsing

🔬 Stringency Washes
• High-salt 2X SSC washes
• Low-salt 0.5X–0.1X SSC washes

Usage Areas

  • Molecular biology and genetics laboratories
  • Cytogenetics and FISH laboratories
  • Genomics and microarray facilities
  • Diagnostic R&D
  • Academic laboratories

Composition (20X, per litre)

ComponentConcentrationAmount per litre
Sodium chloride (NaCl)3.0 M175.3 g
Trisodium citrate dihydrate0.3 M88.2 g
Hydrochloric acid (HCl)to pH 7.0q.s.
High-purity water (ISO 3696)—to 1 L

1X SSC: 150 mM sodium chloride and 15 mM sodium citrate, pH 7.0.

Typical Properties

  • Appearance: Clear, colourless liquid
  • pH: 7.0 at 25 °C
  • Concentration: 20X
  • Common working strengths: 6X, 2X, 0.5X, 0.1X

Available Formulations

  • 20X SSC, pH 7.0 (this product, BZ231)
  • 20X SSC, pH 7.4 (on request)
  • 20X SSC, pH 5.3 (on request)
  • Custom: ready-made 2X SSC / 0.1% SDS and 0.1X SSC / 0.1% SDS wash solutions

Storage, Shelf Life & Transportation

  • Storage Temperature: 2–30 °C
  • Shelf Life: 1 year for unopened bottles
  • Transportation: Room temperature (ambient shipping)
  • Version with Preservatives: Available on request
  • Powder Version: Available on request
  • 20X SSC may precipitate when cold; warm and mix until dissolved before use
  • Keep tightly closed to avoid contamination

Customization Options

  • pH 7.4 or pH 5.3
  • Ready-made SSC/SDS wash solutions
  • 10X or 1X SSC
  • Bulk containers

Ordering Information

BZ231 is available in standard laboratory sizes or OEM/bulk supply formats.

📄 MSDS, Technical Datasheet, and Certificate of Analysis (CoA) available upon request
Email: info@biochemazone.com
Website: www.biochemazone.com

⚠️ For laboratory research use only. Not for human or animal injection or therapeutic use.

Description

Product overview

20X SSC Buffer (BZ231) is a saline-sodium citrate concentrate (3 M NaCl, 0.3 M sodium citrate, pH 7.0) for hybridization, blotting transfer and stringency washes.

  • Catalogue no.: BZ231
  • Concentration: 20X (3 M NaCl, 0.3 M sodium citrate)
  • pH: 7.0
  • 1X: 150 mM NaCl, 15 mM sodium citrate
  • Pack sizes: 100 mL, 200 mL, 500 mL, 1 L
  • Storage: 2–30 °C
  • Shelf life: 1 year (unopened bottle)
  • On request: Version with preservatives; powder version
  • Transportation: Room temperature
  • Use: Laboratory research use only

Frequently asked questions

How do I make 2X SSC from 20X SSC?

Mix 1 part BZ231 with 9 parts high-purity water. For 0.5X SSC use 1 part with 39 parts water, and for 0.1X SSC use 1 part with 199 parts water.

What is SSC used for?

SSC is the hybridization and transfer buffer in nucleic acid blotting and, at decreasing concentrations, the stringency-wash buffer in Southern, Northern, in situ hybridization and FISH protocols.

How does SSC concentration affect stringency?

Lower salt reduces the stability of mismatched hybrids, so washes in 0.5X or 0.1X SSC (often with 0.1% SDS) are more stringent than washes in 2X SSC.

Can I get SSC at another pH?

Yes. The standard product is pH 7.0; 20X SSC at pH 7.4 or pH 5.3 can be made on request.

How should 20X SSC be stored?

Store at 2–30 °C, tightly closed. Unopened bottles have a 1-year shelf life and ship at room temperature.

20X SSC Buffer

20X SSC Buffer composition and customer’s specified configurations can be delivered upon request. pH Value, Concentration, SDS Addition, Container Size, and Contents of the buffer are customizable.
Contact us for Customization: info@biochemazone.com
Transportation and storage: Transportation at room temperature, storage at 2–30 ℃
We provide shipping facilities worldwide.

quality-assurance
Quality-Control-Approved
iso
iata
dubai-accreditation
iaf

Documents

Certificates of Analysis are issued per production batch. Please add the lot number or your order number to the request (catalogue no. BZ231 is filled in for you).

Additional information

Pack Size

100 mL, 200 mL, 500 mL, 1 L

Important Notes

  • Research Use Only: Biochemazone™ materials are intended strictly for research and development purposes in laboratory and industrial settings.
  • No Refunds or Exchanges: All sales are final. Biochemazone™ does not permit exchanges or offer refunds under any circumstances.
  • Customs & Import Responsibilities: Customs clearance, duties, taxes, and tariffs are the sole responsibility of the consignee/importer. Biochemazone™ is not liable for delays, rejections, or any additional costs incurred during the customs process, and such issues will not justify order cancellations or refunds.
  • Order Cancellations: Once an order is placed, it cannot be cancelled. No refunds will be issued for cancelled or undelivered orders.
  • Indemnification: The buyer agrees to indemnify and hold harmless Biochemazone™, its affiliates, and personnel from any claims, damages, liabilities, or expenses arising from the use of its products or services.

Terms & Conditions: All orders and communications are subject to Biochemazone™’s standard Terms & Conditions.

Disclaimer: Images and colors of the formulation displayed are for portrayal purposes only. Actual color and consistency may vary.