Cyclo(Pro-Gly)

Also known as: Cyclo-(Pro-Gly), Cyclo(glycylprolyl), Hexahydropyrrolo[1,2-a]pyrazine-1,4-dione, Pyrrolopiperazine-2,5-dione, Gly-Pro-diketopiperazine, Glycyl-L-proline lactam, Cyclo-Gly-Pro, 2,3,6,7,8,8a-Hexahydropyrrolo[1,2-a]pyrazine-1,4-dione, Cyclo-L-prolylglycine

Cyclo(Pro-Gly) (CAS 19179-12-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O2 and a molecular weight of 154.167 g/mol. Key properties include a boiling point of 447.9±34.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 224.7±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19179-12-5
Jingsj CID: J-1973336-9
Molecular Formula: C₇H₁₀N₂O₂
Molecular Weight: 154.167 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	447.9±34.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	224.7±25.7 °C
Exact Mass	154.074234
PSA	52.90000
LogP	-2.74
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.569

Activity & Biological Data

Additional Information	[1]. Ying-ying Sun, et al. Isolation, Purification, and Identification of Antialgal Substances in Green Alga Ulva Prolifera for Antialgal Activity Against the Common Harmful Red Tide Microalgae. Environ Sci Pollut Res Int. 2016 Jan;23(2):1449-59. [2]. Fumitaka Hayasaka, et al. Production Method for Cyclic Dipeptide Derived from Native Collagen. Food Science and Technology Research, 22 (4), 477-483, 2016. [3]. T A Gudasheva, et al. Identification of a Novel Endogenous Memory Facilitating Cyclic Dipeptide Cyclo-Prolylglycine in Rat Brain. FEBS Lett. 1996 Aug 5;391(1-2):149-52.

Additional Information

[1]. Ying-ying Sun, et al. Isolation, Purification, and Identification of Antialgal Substances in Green Alga Ulva Prolifera for Antialgal Activity Against the Common Harmful Red Tide Microalgae. Environ Sci Pollut Res Int. 2016 Jan;23(2):1449-59. [2]. Fumitaka Hayasaka, et al. Production Method for Cyclic Dipeptide Derived from Native Collagen. Food Science and Technology Research, 22 (4), 477-483, 2016. [3]. T A Gudasheva, et al. Identification of a Novel Endogenous Memory Facilitating Cyclic Dipeptide Cyclo-Prolylglycine in Rat Brain. FEBS Lett. 1996 Aug 5;391(1-2):149-52.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Cyclo(Pro-Gly)?

The CAS number of Cyclo(Pro-Gly) is 19179-12-5.

What are the molecular formula and molecular weight of Cyclo(Pro-Gly)?

Cyclo(Pro-Gly) has molecular formula C7H10N2O2 and molecular weight 154.167 g/mol.

What are the upstream and downstream products of Cyclo(Pro-Gly)?

For Cyclo(Pro-Gly), Downstream Products: Octahydropyrrolo[1,2-a]pyrazine, Glycine, L-Proline.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Cyclo(Pro-Gly) (CAS 19179-12-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973336-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.