D-Pyroglutamic acid (CAS 4042-36-8) — formula C5H7NO3, molecular weight 129.11; category food additives.
D-Pyroglutamic acid (CAS 4042-36-8) is classified under Food Additives, with molecular formula C5H7NO3 and molecular weight 129.11, and serves as a key raw material in the food and beverage industry — commonly applied as a food additive, nutritional supplement, or processing aid where regulatory-grade purity is required. Jinan Shenghe Chemical Co., Ltd. supplies D-Pyroglutamic acid at commercial scale with stable lot-to-lot quality, accompanied by COA and full specification documentation. Typical categorization: Food Additives.
| CAS Number | 4042-36-8 |
|---|---|
| Molecular Formula | C5H7NO3 |
| Molecular Weight | 129.11 |
| LogP | -0.8 |
| Category | Food Additives |
D-Pyroglutamic acid is a food-grade compound with CAS registry number 4042-36-8 and molecular formula C5H7NO3 (molecular weight 129.11), belonging to the food additives segment of chemical raw materials.
CAS number: 4042-36-8
Its molecular formula C5H7NO3 comprises 5 C, 7 H, 1 N, 3 O atoms.
Also known as: D-Pyroglutamic acid · D-焦谷氨酸
Category: food additives
The CAS registry number of D-Pyroglutamic acid is 4042-36-8.
Molecular formula C5H7NO3, molecular weight 129.11.
It is also registered under: D-Pyroglutamic acid, D-焦谷氨酸.
Category: Food Additives.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for D-Pyroglutamic acid (CAS 4042-36-8), compiled from public chemistry databases.
| CAS Registry Number | 4042-36-8 |
|---|---|
| PubChem CID | 439685 |
| Molecular formula | C5H7NO3 |
| IUPAC name | (2R)-5-oxopyrrolidine-2-carboxylic acid |
| UNII (FDA) | TQP297C4HN |
| Molecular Weight | 129.11 |
|---|---|
| XLogP3 | -0.8 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 129.042593085 |
| Monoisotopic Mass | 129.042593085 |
| Topological Polar Surface Area | 66.4 |
| Heavy Atom Count | 9 |
| Collision Cross Section | 124.6 Ų [M-H]- |
|---|---|
| Collision Cross Section | 130.4 Ų [M+H]+ |
D-Pyroglutamic acid; 4042-36-8; 5-oxo-D-proline; (2R)-5-oxopyrrolidine-2-carboxylic acid; D-Proline, 5-oxo-; D-Pidolic acid; (+)-Pyroglutamic acid; (+)-Pidolic acid; D-5-Pyrrolidone-2-carboxylic acid; D-5-Oxoproline; EINECS 223-735-0; CHEBI:16924; DTXSID10193432; RefChem:584412; DTXCID20115923; (2R)-5-oxopyrrolidine-2-carboxylic acid;5-oxo-D-proline
| Regulatory & Food Contact | CIR / INCI: Personal care product |
|---|
| Reported hazard statements | H315 (100%), H319 (100%), H335 (98%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
D-Pyroglutamic acid · CAS 4042-36-8 · C5H7NO3. UNII TQP297C4HN. Collision Cross Section: 124.6 Ų [M-H]-; Collision Cross Section: 130.4 Ų [M+H]+.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: D-焦谷氨酸