Zinc Stearate (CAS 557-05-1) — formula Zn(C18H35O2)2, molecular weight 632.3; category fine chemicals.
Zinc Stearate (CAS 557-05-1) is a chemical raw material in the fine chemicals category. Its molecular formula Zn(C18H35O2)2 comprises 1 Zn, 36 C, 70 H, 4 O atoms. Its molecular weight is about 632.3. Reported physicochemical data: melting point around 266 °F (NIOSH, 2024). As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 557-05-1 |
|---|---|
| Molecular Formula | Zn(C18H35O2)2 |
| Molecular Weight | 632.3 |
| Melting Point | 266 °F (NIOSH, 2024) |
| Applications | CIR ingredient: Zinc Stearate, Used to manufacture drugs, lacquers, and plastics, also used as a dietary supplement, waterproofing agent |
| Category | Fine Chemicals|Plastic Additives |
Documented applications: CIR ingredient: Zinc Stearate, Used to manufacture drugs, lacquers, and plastics, also used as a dietary supplement, waterproofing agent.
Zinc Stearate is a high-value fine compound with CAS registry number 557-05-1 and molecular formula Zn(C18H35O2)2 (molecular weight 632.3), belonging to the fine chemicals segment of chemical raw materials.
CAS number: 557-05-1
Its molecular formula Zn(C18H35O2)2 comprises 1 Zn, 36 C, 70 H, 4 O atoms.
Also known as: Zinc Stearate · 硬脂酸锌
Category: fine chemicals / specialty chemicals
The CAS registry number of Zinc Stearate is 557-05-1.
Molecular formula Zn(C18H35O2)2, molecular weight 632.3.
It is also registered under: Zinc Stearate, 硬脂酸锌.
Recorded applications: CIR ingredient: Zinc Stearate, Used to manufacture drugs, lacquers, and plastics, also used as a dietary supplement, waterproofing agent.
Category: Fine Chemicals / Plastic 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 Zinc Stearate (CAS 557-05-1), compiled from public chemistry databases.
| CAS Registry Number | 557-05-1 |
|---|---|
| PubChem CID | 11178 |
| Molecular formula | Zn(C18H35O2)2 |
| IUPAC name | zinc bis(octadecanoate) |
| UNII (FDA) | H92E6QA4FV |
| Molecular Weight | 632.3 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 30 |
| Exact Mass | 630.456552 |
| Monoisotopic Mass | 630.456552 |
| Topological Polar Surface Area | 80.3 |
| Heavy Atom Count | 41 |
| Melting Point | 266 °F (NIOSH, 2024) |
|---|---|
| Melting Point | 130 °C |
| Melting Point | 266 °F |
| Flash Point | 530 °F (NIOSH, 2024) |
| Flash Point | 277 °C |
| Flash Point | 277 °C o.c. |
| Flash Point | (oc) 530 °F |
| Density | 1.095 g/cu cm |
| Density | 1.1 g/cm³ |
| Density | 1.10 |
ZINC STEARATE; 557-05-1; Zinc octadecanoate; Zinc distearate; Zn Stearate; Octadecanoic acid, zinc salt; Hydense; Hytech; Mathe; Coad; Zinci stearas; Zink distearat; Unichem ZS; Zincum stearinicum; Stearic acid, zinc salt; Dermarone
| Regulatory & Food Contact | FDA Substance added to food: NUTRIENT SUPPLEMENT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetic ingredients (Zinc Stearate) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Cosmetic colorant; Anticaking |
|---|---|
| GHS notification summary | 61.3% (1292 / 2108) |
| GHS notification summary | 61.3% (1292 / 2108) |
|---|---|
| Reported hazard statements | H335 (28.3%), H400 (30.9%), H413 (22.7%), H316, H320 |
This chemical does not meet GHS hazard criteria for 61.3% (1292 of 2108) of all reports.
H335 (28.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Zinc Stearate · CAS 557-05-1 · Zn(C18H35O2)2. UNII H92E6QA4FV. Melting Point: 266 °F (NIOSH, 2024); Melting Point: 130 °C; Melting Point: 266 °F.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 硬脂酸锌