Question 1

What is the catalog number for (E) -4-Hydroxycrotonoic Acid Ethyl Ester?

Accepted Answer

The catalog number for (E) -4-Hydroxycrotonoic Acid Ethyl Ester is 163987.

Question 2

What sizes are available for (E) -4-Hydroxycrotonoic Acid Ethyl Ester?

Accepted Answer

(E) -4-Hydroxycrotonoic Acid Ethyl Ester is available in the following size(s): 250 mg.

Question 3

Is (E) -4-Hydroxycrotonoic Acid Ethyl Ester in stock?

Accepted Answer

(E) -4-Hydroxycrotonoic Acid Ethyl Ester is currently made to order / not held in immediate stock. Contact us for lead time.

Question 4

Is this product species cross-reactive?

Accepted Answer

Cross-reactivity data, based on available testing, is listed under the reactivity section of the datasheet. Contact us if you need reactivity confirmed for a species not listed.

Question 5

Is there an additional fee for hazardous or dry ice shipping of this product?

Accepted Answer

Yes, if this product requires dry ice or is classed as hazardous for transport, the additional fee will be explicitly shown in your quotation before you confirm the order, so there are no surprise charges later.

Question 6

How many freeze-thaw cycles can this product tolerate?

Accepted Answer

We recommend aliquoting the product upon receipt to avoid repeated freeze-thaw cycles, which can reduce activity and stability. This is your responsibility once the product has been delivered.

(E) -4-Hydroxycrotonoic Acid Ethyl Ester

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