4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one
Also known as: 4-Chloromethyl-5-methyl-1,3-dioxol-2-one, 4-Chloromethyl-5-methyl-2-oxo-1,3-dioxole, 4-Chloromethyl-5-methyl-1,3-dioxolen-2-one, 4-(Chloromethyl)-5-methyl-2-oxo-1,3-dioxolene, DMDO-Cl, Medoxomil chloride, Olmesartan Medoxomil Side Chain, 4-Chloromethyl-5-methyl-1,3-dioxol-2-on, MFCD07787494, 1,3-Dioxol-2-one, 4-(chloromethyl)-5-methyl-
4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one (CAS 80841-78-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H5ClO3 and a molecular weight of 148.544 g/mol. Key properties include a boiling point of 163.2±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 66.7±26.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. It is listed by 1 supplier, from 1.80 to 19.80 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 80841-78-7
- Jingsj CID
- J-1135482-4
- Molecular Formula
- C5H5ClO3
- Molecular Weight
- 148.544 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | 98% 500g | ¥900.00 | $0.27 /gBest ¥1.80/g CNY | CN China MOQ 500g | |
In Stock | 98% 100g | ¥390.00 | $0.58 /g ¥3.90/g CNY | CN China MOQ 100g | |
In Stock | 98% 25g | ¥165.00 | $0.99 /g ¥6.60/g CNY | CN China MOQ 25g |
Physicochemical Properties
| Boiling Point | 163.2±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 66.7±26.9 °C |
| Exact Mass | 147.992722 |
| PSA | 43.35000 |
| LogP | 1.61 |
| Vapor Pressure | 2.1±0.3 mmHg at 25°C |
| Refractive Index | 1.481 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen 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 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one?
The CAS number of 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one is 80841-78-7.
What are the molecular formula and molecular weight of 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one?
4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one has molecular formula C5H5ClO3 and molecular weight 148.544 g/mol.
Which suppliers offer 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one?
1 supplier(s) listed; reference unit price ¥1.80–19.80 /g.
Is 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one hazardous?
4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one?
For 4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one, Upstream Products: 4,5-Dimethyl-1,3-dioxol-2-one; Downstream Products: (5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazole-5-carboxylate, 4-(Hydroxymethyl)-5-methyl-1,3-dioxol-2-one, 4-(Bromomethyl)-5-methyl-1,3-dioxol-2-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-(Chloromethyl)-5-methyl-1,3-dioxol-2-one (CAS 80841-78-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1135482-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.