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Bacteriostatic Water CAS 7732-18-5 BAC

40 Inquiries

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CAS No.:

7732-18-5

Grade:

Pharmaceutical Grade

Content:

99%

Port:

shenzhen

Brand:

rxc

Packaging:

2ml, 3ml, 5ml, 7ml, 10ml, 30ml, etc

Price valid (until):

2026-06-15

Contact Supplier

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Hebei Runxuchen trading Co., LTD

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

peptide

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Product Description
Seller Information
Inquiry History

Description

1. Product Overview

BAC Water (Bacteriostatic Water) (CAS: 7732-18-5) is a sterile, non-pyrogenic aqueous solution formulated exclusively for laboratory research applications. It contains 0.9% benzyl alcohol as a bacteriostatic preservative, designed to inhibit microbial growth and contamination during repeated use. Our product is manufactured under strict sterile conditions, filtered through 0.22μm membranes and autoclaved, ensuring high purity and stability for controlled experimental protocols.

2. Core Functions & Mechanisms

BAC Water provides key benefits for laboratory workflows:

Multi-Use Sterility Maintenance: The 0.9% benzyl alcohol acts as a bacteriostatic agent, disrupting microbial cell membrane integrity and inhibiting bacterial replication. This allows repeated vial entry for sampling without compromising sterility over extended periods.
Biomolecule Stability Support: As a preservative-containing solvent, it reduces the risk of contamination-induced degradation of sensitive lyophilized compounds, such as peptides and proteins, maintaining sample integrity during storage and experiments.
Broad Compatibility: Formulated to be compatible with most lyophilized peptides, recombinant proteins, and other biological reagents, serving as a reliable diluent or reconstitution medium in diverse research settings.
Ease of Use: The solution is ready-to-use, eliminating the need for additional preparation steps and reducing the risk of contamination during experimental setup.

3. Common Research Applications

BAC Water is a versatile tool in multiple laboratory research fields:

Peptide & Protein Research: The primary solvent for reconstituting lyophilized peptides (such as Semax, GHK-Cu, and others) prior to in vitro assays, cell culture studies, or preclinical experiments.
Biological Assays: Used as a diluent for enzyme reactions, immunoassays, and molecular biology protocols requiring sterile, preservative-containing aqueous media.
Biomolecule Storage: Employed as a storage solvent for peptide stock solutions, preventing microbial growth and extending the usable life of reconstituted samples.
Analytical Chemistry: Suitable for preparing standard solutions, calibration curves, and sample matrices in HPLC, mass spectrometry, and other analytical techniques involving aqueous samples.
Cell & Tissue Culture: Used in controlled experiments where sterile, low-contamination aqueous solutions are required for media preparation or reagent dilution.

why choose us
Our company is a high-tech enterprise specializing in the research, development and manufacturing of peptide products. We utilize cutting-edge biotechnologies to meet the growing demand in the fields of healthcare, preventive medicine, cosmetics and functional foods for high-purity, high-performance and regulatory-compliant peptide solutions.
As a vertically integrated developer and producer of peptides, we have an in-house R&D team consisting of scientists with doctoral degrees and senior process engineers with extensive industry experience. This team drives continuous innovation in peptide synthesis, purification and formulation to ensure the safety, reproducibility and therapeutic or functional effects of our products. Our product portfolio includes pharmaceutical-grade (in compliance with cGMP standards), food-grade (in compliance with GRAS standards) and cosmetic-grade peptides, each of which has been rigorously validated to ensure its identity, purity, efficacy and stability

FAQ

Frequently Asked Questions

Question 1: About After-sales Service
After purchasing products from our laboratory, our professional technical and after-sales teams will provide support to solve any problems you may encounter.

Question 2: Can I get samples?
Yes, we can provide samples. The shipping cost shall be borne by the customer.

Question 3: What payment methods do you accept?
We accept PayPal and Alibaba trade payment etc.

Question 4: How to confirm product quality before ordering?
Our products have received positive customer feedback and passed third-party testing.
Free samples are available; you only need to cover the shipping cost.
You may send us your specifications and requirements for customization.

Question 5: What is the estimated delivery time?
Production lead time is approximately 3 working days, and shipping takes about 8 to 10 working days.

Packing and Transport

Items	Specifications
Common Name	BAC Water / Bacteriostatic Water
CAS Number	7732-18-5
Form	Clear, colorless sterile liquid

Basic Info

Product Name:

Water

Other Name:

Water;R 718;Hydrogen oxide (H2O);Distilled water;NSC 147337;Aquafina;Ultrex II Ultrapure;Milli-Q water;558440-22-5;558440-53-2;652133-48-7;1202864-49-0;1371582-34-1

CAS No.:

7732-18-5

Molecular Formula:

H2O

InChIKeys:

InChIKey=XLYOFNOQVPJJNP-UHFFFAOYSA-N

Molecular Weight:

18.01

Exact Mass:

18.010565

EC Number:

215-185-5

UNII:

059QF0KO0R

NSC Number:

147337

DSSTox ID:

DTXSID6026296

NCI Thesaurus Code:

C65147

Color/Form:

Colorless liquid|Liquid

HScode:

3303000000

Categories:

Characteristics

PSA:

XLogP3:

-1.38

Appearance:

White to off-white powder

Density:

1.00293 g/cm³ @ Temp: 25 °C

Melting Point:

0 °C

Boiling Point:

100 °C

Flash Point:

100°C

Refractive Index:

1.329

Water Solubility:

soluble in water. Insoluble in polar liquids.H2O: 1 M at 20 °C, clear, colorless

Storage Conditions:

2-8°C

Vapor Pressure:

3 mm Hg ( 37 °C)

Vapor Density:

<1 (vs air)

Odor:

Odorless

Taste:

Tasteless

Experimental Properties:

The polarity of water is an important factor in determining its solvent properties.|... since hydrogen and oxygen each have 3 isotopes, there exist 18 possible molecular weights for water|Apparent dipole moment: 6.24X10-30 C.m|Allotropic forms are ice (solid) and steam (vapor)|For more Other Experimental Properties (Complete) data for Water (12 total), please visit the HSDB record page.

Air and Water Reactions:

No rapid reaction with air. No rapid reaction with water.

Reactive Group:

Water and Aqueous Solutions

Reactivity Profile:

Water reacts with many substances, including but not limited to alkali metals, hydrides, strong halogenating agents, and chlorosilanes. These reactions can be hazardous and may result in flammable or toxic gas production, or generation of excessive heat that may cause pressurization to occur. Another reactive hazard is heat of mixing. Mixing substances such as sulfuric acid or sodium hydroxide with water may generate significant heat. Additionally, water is a good solvent for polar molecules, so it can form aqueous solutions if it comes into contact with such molecules.

Corrosivity:

The solvent powers of water exerted in man-made conduit/pipe systems ... lead to ... corrosion and scaling

Heat of Vaporization:

9.717 kcal/mole

Critical Temperature & Pressure:

Critical temperature: 374.2 °C; critical pressure: 218 atm

See More Water Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Water Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
peptide

Location:
south road and north road

Payment Terms:
TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
15

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2022
Hebei runxuchen trading Co., Ltd. is a modern and advanced enterprise specializing in the production and export of peptide products, synthetic peptides, cosmetic raw materials, beauty and slimming products etc Products are widely used in health products, peptides and other fields. Our plant covers an area of 1000 m². The proposed workshop will be built according to GMP standards. We provide our customers with quality products and first-class service. Now, we can provide G-KG service to our customers.
High-Quality Peptides: Our company specializes in premium-grade peptides, ensuring the highest standards of purity and efficacy. Each product undergoes rigorous testing to guarantee superior quality and performance.

Cutting-Edge Technology: We leverage the latest advancements in peptide synthesis and production technology. Our state-of-the-art facilities and innovative processes enable us to deliver peptides with exceptional precision and consistency.

Custom Solutions: We offer tailored peptide solutions to meet the specific needs of our clients. Whether you require bespoke formulations or custom quantities, our experienced team is dedicated to providing personalized support and solutions.

Extensive Expertise: With years of experience in the peptide industry, our team of experts is well-versed in the complexities of peptide development and applications. We are committed to providing insightful guidance and technical support to help you achieve your goals.

Comprehensive Product Range: Our diverse portfolio of peptide products covers a wide range of applications, including research, pharmaceutical development, and cosmetic formulations. This allows us to cater to various industries and meet different customer needs.

Inquiry History

40 Inquiries

Country	Product	Purchase Quantity	Date Posted
Germany	Bacteriostatic Water (BAC water) 10ml/3ml. CAS No, 7732-18-5	4000 PCS	Jun 24, 2026
United States	Bac Water	10 MG	Feb 2, 2026
United States	BAC water	10 MG	May 7, 2026
United States	Deionized Water	1 MT	May 2, 2026
United States	BAC water	1 KG	Apr 13, 2026
United States	Bac Water 3ml & 10ml	500 PCS	Mar 24, 2026
United States	Bac Water	1 MT	Mar 24, 2026
Australia	Bacteriostatic Water	10 MG	Mar 16, 2026
United States	Water	10 MG	Mar 4, 2026
United States	BAC water	1 KG	Feb 9, 2026
United States	bac water	10 G	Jan 27, 2026
Norway	Bac Water	1 L	Jan 26, 2026
Australia	Bac water	30 MG	Jan 12, 2026
United Arab Emirates	bacteriostatic water	10 MG	Nov 10, 2025
Egypt	Alkaline Water	1 KG	Sep 22, 2025
United States	Bac water	1 KG	Sep 22, 2025
United States	Bacteriostatic Water	1 L	Jul 28, 2025
United States	BAC Water	6000	Jul 27, 2025
Vietnam	Water	30 KG	Jul 17, 2025
United Kingdom	bac water	1 KG	Jul 7, 2025

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