Reference Standards – Search, Select, and Custom Request

New functionality!

More than 1/3 of the ampuls that leave Restek’s facility are custom-ordered reference standards. However, we are actually able to satisfy many of the custom requests we receive using off-the-shelf catalog products—with less waiting and lower cost.

This tool will help you immediately determine whether a catalog reference standard will suit your needs. If so, a click will add it to your order or quote; if not, simply proceed through the form to request a custom reference standard for some or all of your compounds of interest.

Please submit a new request for each custom reference standard. You can also fax a request to
1-814-353-1309 or email our Reference Standards Group.

  • 1. Define Standard
  • 2. Search Catalog Products
  • 3. Select Catalog Products
  • 4. Request Custom Standard
  • 5. Enter Contact Info

Enter compound name or CAS#:

Add to list as is

Or, paste a list of compounds:

Each compound must be on a separate line.
Any combination of compound name, CAS#, or concentration should be separated by tabs (or stored in different spreadsheet columns) before pasting.
If your list includes concentrations, omit the units. (You will select the units after adding compounds to your list at the right.)

Selected compounds:

Please provide CAS#s to assure accuracy.


Method of analysis:


Suggested Products


Chosen Products

Compounds Not Yet Matched


Compounds in Chosen Products


Extra Compounds in Chosen Products

  Choose How To Proceed:

and send a custom request for the unmatched compounds


and disregard the chosen products

Chosen Products

Compounds for Custom Request


Compounds in Chosen Products


Extra Compounds in Chosen Products

Compounds For Custom Request

*Indicates required field
1. Reference standard description:  *
Will appear on product label & documentation
2. Final destination country:  *
3. Intended use: Please mark all that apply *

4. I'm conducting my test in fulfillment of the following method: 

5. Minimum volume/ampul:  Choose one *
 1 mL
 5 mL
 10 mL
 20 mL

Note: Individual container volumes ≥ 30 mL require additional Hazardous Shipping fees. For more information, contact your local Restek® representative.

Note: Individual container volumes > 20 mL are packaged in screw-top bottles.


6. Packaging: Number of ampuls: *


Note: Minimum order of 3 ampuls required.

Package Type (does not affect price): *






7. Select the testing and documentation that best meet your requirements: *

Product supplied with the gravimetric records listing purity of each material used, calculated concentration, a unique product lot number, raw material lot numbers, and isomer ratios for isomeric compounds.


A sample withdrawn from the packaged units is tested by the appropriate technique to verify mixture composition. Product supplied with a certificate of composition showing a chromatogram of the standard with each peak identified, raw material purity, and gravimetric concentration.


A sample of the packaged unit is analyzed in triplicate and the peak areas are statistically compared to a previous lot (if available) or a second lot. A detailed data pack is available at containing gravimetric documentation, all quantitative assay raw data, exact amount of each raw material used, total volume prepared, and statistics. Test results for raw material purity and identification are available upon request.

8. Select the language for your safety data sheet (SDS): * 

9. Does your lab require the use of Certified Reference Materials (CRMs)? *


10. Objective for requesting the quote: *
Please mark all that apply

11. Do you have a special time frame for receiving your quote? (If yes, please explain.) While we cannot accommodate all quote-delivery requests, we will attempt to if possible.*


12. Lower your price per analysis for repeat projects -- would you like to save up to 75% by setting up a blanket/standing order? *



Restek’s quality policy is to use the highest purity raw materials available; however, not all materials will be free of impurities. Please specify any compounds that cannot be present in your formulation. We will do our best to ensure that these compounds are not present in the raw materials used to manufacture your standard. Please also list any additional compounds or special requirements not previously identified. Thank you.

13. Notes and comments:

 *Indicates required field

Contact information—Log in to autofill:

Restek Account #:  (optional)
E-mail address:  *
First name:  *
Last name:  *
Job title: 
Company:  *
Street address:  *
(and/or) PO Box: 
Mail stop: 
City:  *
Country:  *
Postal code:  *
Phone:  *

Application area: Please check all that apply.*


Analytical technique(s) or product area:*


  • Visit to learn more about our ISO quality credentials and view our certificates (including scopes of accreditation).
  • Restek uses the highest purity raw materials available and will make a weight correction on any compound with a purity less than 99%.
  • Concentration is based upon gravimetric preparation using a calibrated balance (verified daily using NIST traceable weights) and/or dilutions with Class A glassware.
  • All concentrations under 0.001% are based on serial dilution calculations using class A glassware and are not verified by testing.

PLEASE NOTE: Custom Restek® products (i.e., non-stocked, non-catalog items) that meet the requested product specifications are not returnable or refundable. Be sure to check the product specifications in your quote request before submitting. Also re-check the specifications in your sales quote before placing your order. Requests may be split into multiple ampuls to provide the best, most robust product. If you have any questions, contact Restek or your local Restek® representative.


Thank you for your interest in Restek’s Reference Standards. Your request will be forwarded to our Reference Standards team, which includes our Formulations Chemists, Manufacturing Supervisor, and Product Marketing Manager, for review and quote development. The most robust formulation(s) option, based on our expertise and the information you have provided, will be presented. Should we have any questions or require clarification, a team member will contact you via your preferred method. If you wish to contact us, pleaseemail – otherwise, you should expect to hear from us within three business days, unless we are able to accommodate a special quote delivery time frame, as noted above in your quote request.

Preferred contact method: *



You can also fax a request to (814) 353-1309,
or email our Reference Standards Group



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