2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide
2-氯-5,5-二甲基-1,3,2-二氧磷杂环己烷 2-氧化物
Also known as: 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinan-2-one, 5,5-dimethyl-2-oxo-2-chloro-1,3,2-dioxaphosphorinane, neopentylene phosphorochloridate, 2-chloro-5,5-dimethyl-2-oxo-1,3,2-dioxaphosphinane, 2-chloro-5,5-dimethyl-1,3,2λ5-dioxaphosphinane 2-oxide
2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide (CAS 4090-55-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C5H10ClO3P and a molecular weight of 184.55800 g/mol. It is also known as 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinan-2-one, 5,5-dimethyl-2-oxo-2-chloro-1,3,2-dioxaphosphorinane and neopentylene phosphorochloridate. Key properties include a melting point of 97-102ºC(lit.), a boiling point of 152.1ºC at 760mmHg and a density of 1.28g/cm3. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4090-55-5
- Jingsj CID
- J-35250-5
- Molecular Formula
- C5H10ClO3P
- Chinese Name
- 2-氯-5,5-二甲基-1,3,2-二氧磷杂环己烷 2-氧化物
- Molecular Weight
- 184.55800 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 97-102ºC(lit.) |
|---|---|
| Boiling Point | 152.1ºC at 760mmHg |
| Density | 1.28g/cm3 |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide?
The CAS number of 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide is 4090-55-5.
What are the molecular formula and molecular weight of 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide?
2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide has molecular formula C5H10ClO3P and molecular weight 184.55800 g/mol.
Is 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide hazardous?
2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide has GHS signal word Danger.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide (CAS 4090-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35250-5 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.