ChemicalBook >> CAS DataBase List >>1H-2-Benzopyran-1-one
1H-2-Benzopyran-1-one
- CAS No.
- 491-31-6
- Chemical Name:
- 1H-2-Benzopyran-1-one
- Synonyms
- Isocoumarin;ISOCUMARINE;2,1-benzopyrone;isochromen-1-one;1H-isochromen-1-one;3,4-Dehydro-1-isochromanone
- CBNumber:
- CB7875335
- Molecular Formula:
- C9H6O2
- Molecular Weight:
- 146.14
- MDL Number:
- MFCD08061387
- MOL File:
- 491-31-6.mol
- MSDS File:
- SDS
Last updated:2026-05-28 03:04:26
| Product description | Number | Pack Size | Price |
| 1H-Isochromen-1-one min. 95.0 % | I1248 | 100MG | $306 |
| 1H-2-Benzopyran-1-one 95% | AS229097 | 250mg | $249 |
| 1H-2-Benzopyran-1-one 95% | AS229097 | 1g | $543 |
| 1H-Isochromen-1-One ≥97% | AA00DJTR | 50mg | $40 |
| 1H-Isochromen-1-One 95% | AA00DJTR | 250mg | $174 |
| More product size | |||
| Melting point | 47°C |
|---|---|
| Boiling point | 286°C (estimate) |
| Density | 1.1674 (rough estimate) |
| refractive index | 1.5100 (estimate) |
| LogP | 1.994 (est) |
| FDA UNII | SR89982S3E |
| EPA Substance Registry System | 1H-2-Benzopyran-1-one (491-31-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H319-H315-H302-H335 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501 |
| TSCA | TSCA listed |
1H-2-Benzopyran-1-one price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | I1248 | 1H-Isochromen-1-one min. 95.0 % | 491-31-6 | 100MG | $306 | 2026-04-30 | Buy |
| Activate Scientific | AS229097 | 1H-2-Benzopyran-1-one 95% | 491-31-6 | 250mg | $249 | 2026-06-04 | Buy |
| Activate Scientific | AS229097 | 1H-2-Benzopyran-1-one 95% | 491-31-6 | 1g | $543 | 2026-06-04 | Buy |
| aablocks | AA00DJTR | 1H-Isochromen-1-One ≥97% | 491-31-6 | 50mg | $40 | 2026-05-28 | Buy |
| aablocks | AA00DJTR | 1H-Isochromen-1-One 95% | 491-31-6 | 250mg | $174 | 2026-05-28 | Buy |
1H-2-Benzopyran-1-one Chemical Properties,Uses,Production
Definition
ChEBI: The simplest member of the class of isocoumarins that is 1H-isochromene which is substituted by an oxo group at position 1.
Synthesis Reference(s)
Journal of the American Chemical Society, 106, p. 5274, 1984 DOI: 10.1021/ja00330a041
Journal of Heterocyclic Chemistry, 27, p. 1419, 1990 DOI: 10.1002/jhet.5570270544
Tetrahedron Letters, 25, p. 4459, 1984 DOI: 10.1016/S0040-4039(01)81466-0
1H-2-Benzopyran-1-one Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 24)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ShenZhen Trendseen Biological Technology Co.,Ltd. | 13417589054 | trendseenbio@gmail.com | China | 11674 | 58 |
| Jilin Chinese Academy of Sciences-yanshen Technology | 18143011203 | info@chemextension.com | China | 42052 | 58 |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53799 | 58 |
| Suzhou Zhuyanke Biopharmaceutical Co., Ltd. | 15190025787 18550797660 | nmjmh2014@163.com | China | 775 | 58 |
| Wuhan Chemduro Pharm Tech Co. Ltd. | 18040571231/1402788087 | China | 1972 | 58 | |
| Hangzhou Milestone Pharmtech Co., Ltd. | 0571-82896630 18969958410 | sales_hz@milestonepharmtech.com | China | 4903 | 55 |
| Shanghai Changyan Chem & Tech Co., Ltd. | 021-20242659 18930833303 | sales@changyanchem.cn | China | 4998 | 55 |
| CASNO Chem Ltd. | 86-13710190520 | sales@casnochem.com | China | 313 | 58 |
| Aikon International Limited | 025-66061636 19370895928 | qqyang@aikonchem.com | China | 15810 | 58 |
| Cool Pharm, Ltd | 021-58581007 18019463053 | sales@coolpharm.com | China | 9999 | 58 |
491-31-6(1H-2-Benzopyran-1-one)Related Search:
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ISOCUMARINE
3,4-Dehydro-1-isochromanone
isochromen-1-one
1H-isochromen-1-one
2,1-benzopyrone
Isocoumarin
491-31-6
C6H4CHCHCOO
