methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate
Also known as: methyl 3-oxo-1,2-benzisothiazole-2(3H)-acetate 1,1-dioxide, 2,3-dihydro-3-oxo-1,2-benzoisothiazole-2-acetic acid methyl ester 1,1-dioxide, 3-oxo-1,2-benzoisothiazole-2(3H)acetic acid methyl ester 1,1-dioxide, 3-oxo-1,2-benzoisothiazoline-2-acetic acid methyl ester 1,1-dioxide, Piroxicam Impurity D, Saccharin N-(2-acetic acid methyl ester), NSC 49216, EINECS 229-646-3
methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate (CAS 6639-62-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO5S and a molecular weight of 255.24700 g/mol. Key properties include a boiling point of 434.5ºC at 760 mmHg, a density of 1.499g/cm3 and a flash point of 216.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6639-62-9
- Jingsj CID
- J-1071522-7
- Molecular Formula
- C10H9NO5S
- Molecular Weight
- 255.24700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 434.5ºC at 760 mmHg |
|---|---|
| Density | 1.499g/cm3 |
| Flash Point | 216.6ºC |
| Exact Mass | 255.02000 |
| PSA | 89.13000 |
| LogP | 1.02280 |
| Refractive Index | 1.595 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate?
The CAS number of methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate is 6639-62-9.
What are the molecular formula and molecular weight of methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate?
methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate has molecular formula C10H9NO5S and molecular weight 255.24700 g/mol.
What are the upstream and downstream products of methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate?
For methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate, Upstream Products: Saccharin sodium, Methyl chloroacetate, Methyl bromoacetate; Downstream Products: Methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, Methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, Piroxicam.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "methyl 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetate (CAS 6639-62-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1071522-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.