Question 1

What is the catalog number for CHIR 99021?

Accepted Answer

The catalog number for CHIR 99021 is 1677-5.

Question 2

Is CHIR 99021 in stock?

Accepted Answer

CHIR 99021 is currently made to order / not held in immediate stock. Contact us for lead time.

Question 3

What is CHIR 99021 used for?

Accepted Answer

A potent and highly selective inhibitor of glycogen synthase kinase-3β (GSK-3β) (IC₅₀ = 6.7 nM). CHIR99021 has been shown to allow for long-term expansion of murine embryonic stem cells in a chemically-defined medium in conjunction with MEK/MAPK inhibitor PD184352 and fibroblast growth factor recept

Question 4

Is this product classed as hazardous or restricted for shipping?

Accepted Answer

Some products are subject to special import/export regulations, dangerous goods handling, or licensing requirements. Where this applies, it’s noted on the product page, and any required extra documents or fees will be confirmed with you before dispatch, never added without your consent.

Question 5

Can you help me confirm if this product is right for my specific experiment?

Accepted Answer

Yes, contact us with details of your sample type, species, and intended application, and our specialists will confirm suitability or suggest an alternative from our supplier network if this isn’t the best fit.

Question 6

What is the purity of this recombinant protein?

Accepted Answer

Purity, typically assessed by SDS-PAGE, is listed on the datasheet under quality control data.

CHIR 99021

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