Piperacilloic Acid

哌拉西林酸

Also known as: Piperacillin Impurity B, Piperacillin EP Impurity B, Piperacillin Impurity 5, Piperacillin Impurity 2, Piperacillin Impurity 2(EP Impurity B), Piperacillin Impurity 2(EP Impurity B)(Mixture of Diastereomers), Piperacillin ImpurityⅠ:Impurity A(Piperacilloic Acid), α-(4-Ethyl-2,3-dioxo-1-piperazinecarboxamido)benzylpenicilloic Acid, (2R,4S)-2-[(R)-Carboxy{[(2R)-2-{[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-2-phenylacetyl]amino}methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid, (2R,4S)-2-[(R)-carboxy-[[(2R)-2-[(4-ethyl-2,3-dioxopiperazine-1-carbonyl)amino]-2-phenylacetyl]amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid, 2-Thiazolidineacetic acid, 4-carboxy-α-[[(2R)-2-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-2-phenylacetyl]amino]-5,5-dimethyl-, (αR,2R,4S)-, [2R-[2α[R*(R*)],4β]]-4-Carboxy-α-[[[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]phenylacetyl]amino]-5,5-dimethyl-2-thiazolidineacetic Acid

Piperacilloic Acid (CAS 64817-22-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C23H29N5O8S and a molecular weight of 535.570 g/mol. It is also known as Piperacillin Impurity B, Piperacillin EP Impurity B and Piperacillin Impurity 5. Key property: a density of 1.4±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
64817-22-7
Jingsj CID
J-989165-8
Molecular Formula
C23H29N5O8S
Chinese Name
哌拉西林酸
Molecular Weight
535.570 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Density1.4±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of Piperacilloic Acid?

The CAS number of Piperacilloic Acid is 64817-22-7.

What are the molecular formula and molecular weight of Piperacilloic Acid?

Piperacilloic Acid has molecular formula C23H29N5O8S and molecular weight 535.570 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Piperacilloic Acid (CAS 64817-22-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-989165-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.