HES Standards
HES Standards
Hydroxyethyl starch molecular weight reference materials.
Explore six molecular weight options for analytical method development and polymer characterization. Select the material that fits your laboratory’s workflow.
Six options. One focused portfolio.
Listed molecular weights in kDa • Illustrative range
250 mg pack size across all six products
Choose a reference for your method.
HES is a modified starch polymer. Molecular weight characterization helps laboratories understand and compare its polymer profile. These reference materials can be evaluated for the following applications, subject to method-specific qualification.
SEC / GPC workflows
Evaluate material suitability for aqueous size-exclusion or gel-permeation chromatography methods.
Polymer comparisons
Support comparative studies of hydroxyethyl starch molecular weight characteristics.
Qualified reference use
Assess use as a working reference or performance-monitoring material within your qualified analytical procedure.
Find your HES standard.
Enquire about individual products or request a quotation for the complete six-product range.
| Catalogue number | Listed molecular weight (Da) | Pack size | Enquiry |
|---|---|---|---|
| KTLA75K | 75,800 | 250 mg | Request quote |
| KTLA136K | 136,800 | 250 mg | Request quote |
| KTLA206K | 206,700 | 250 mg | Request quote |
| KTLA250K | 250,400 | 250 mg | Request quote |
| KTLA380K | 379,800 | 250 mg | Request quote |
| KTLA600K | 608,100 | 250 mg | Request quote |
Values shown are catalogue listings. Confirm current lot values, specifications and suitability against the applicable certificate of analysis before use. Pricing and availability are confirmed on enquiry.
Enquire about the full rangeStart with your method requirements.
Share your selected catalogue number, intended application and analytical method with our team. We can discuss the relevant product information for your evaluation.
Request CoA and specifications ↗Information to request for your evaluation
- Current lot certificate of analysis and assigned values
- Molecular weight distribution and characterization method
- Storage, handling and sample preparation guidance
- Suitability for your intended reference or calibration procedure
For laboratory analytical use. Not for administration to humans or animals.
Before you select a standard.
Are these materials a ready-to-use SEC calibration kit?
The six products are offered as individual reference materials. Calibration suitability depends on the material’s molecular weight distribution, value assignment and your procedure. A calibration curve should not be constructed from catalogue molecular weights alone; request the supporting technical information and qualify the approach for your method.
How do I choose the appropriate molecular weight?
Consider the expected molecular weight range of your samples, your analytical method and the intended use of the reference. Share these requirements with our team and review the current lot documentation before selecting a product.
Does molecular weight specify the degree of substitution?
No. Molecular weight and the degree of hydroxyethyl substitution are distinct characteristics. The catalogue molecular weights on this page do not establish a substitution grade such as HES 130/0.4.
Are these pharmacopoeial or certified reference materials?
This page does not designate the products as USP, EP or IP reference standards, or as certified reference materials. If your procedure requires a particular compendial status, traceability or uncertainty statement, request confirmation before ordering.
How can laboratories in India enquire?
Krishgen is the distributor in India. Contact info@krishgen.com with your catalogue number, required quantity and delivery location for local enquiries.
Bring the right reference
into your workflow.
Request a quotation or technical information for HES Standards.