Question 1

What is the catalog number for Hel a 2?

Accepted Answer

The catalog number for Hel a 2 is orb3032423.

Question 2

What sizes are available for Hel a 2?

Accepted Answer

Hel a 2 is available in the following size(s): 250 µg, 500 µg.

Question 3

How many pack sizes does Hel a 2 come in?

Accepted Answer

Hel a 2 is available in 2 different pack sizes.

Question 4

Is Hel a 2 in stock?

Accepted Answer

Hel a 2 is currently made to order / not held in immediate stock. Contact us for lead time.

Question 5

What is Hel a 2 used for?

Accepted Answer

Recombinant Helianthus annuus allergen Hel a 2 was expressed in E. coli and purified by affinity chromatography using a His tag.

Question 6

What is the shelf life of this product?

Accepted Answer

Shelf life and expiration dates vary by product and are shown on the product listing and label. Products used beyond their expiration date are not eligible for performance-related returns or refunds, so please check the lot number and expiry before use.

Question 7

What expression system was used for this recombinant protein?

Accepted Answer

The expression system, such as E. coli, HEK293, or insect cells, is listed on the datasheet under production details, which can affect post-translational modifications relevant to your application.

Question 8

Can I return this product if I ordered the wrong one?

Accepted Answer

As a consumer, you have a 14-day right of withdrawal from receipt under EU consumer protection law, submitted via our withdrawal/cancellation request form. Note this applies to unused, undamaged products, and doesn’t override the expiry/storage conditions on performance-based claims.

Hel a 2

Product Specifications

Storage Conditions

Notes

Available Sizes

Frequently Asked Questions

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