Introduction：Basic information about CAS 254-04-6|2H-chromene, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 2H-chromene |
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| CAS Number | 254-04-6 | Molecular Weight | 132.15900 |
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| Density | 1.095g/cm3 | Boiling Point | 220.2ºC at 760mmHg |
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| Molecular Formula | C9H8O | Melting Point | / |
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| MSDS | / | Flash Point | 79.7ºC |
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Names
| Name | 2H-chromene |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.095g/cm3 |
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| Boiling Point | 220.2ºC at 760mmHg |
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| Molecular Formula | C9H8O |
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| Molecular Weight | 132.15900 |
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| Flash Point | 79.7ºC |
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| Exact Mass | 132.05800 |
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| PSA | 9.23000 |
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| LogP | 2.09220 |
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| Vapour Pressure | 0.169mmHg at 25°C |
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| Index of Refraction | 1.571 |
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| InChIKey | KYNSBQPICQTCGU-UHFFFAOYSA-N |
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| SMILES | C1=Cc2ccccc2OC1 |
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Toxicological Information
CHEMICAL IDENTIFICATION - RTECS NUMBER :
- DJ2105000
- CHEMICAL NAME :
- 2H-1-Benzopyran
- CAS REGISTRY NUMBER :
- 254-04-6
- BEILSTEIN REFERENCE NO. :
- 0109871
- LAST UPDATED :
- 199803
- DATA ITEMS CITED :
- 1
- MOLECULAR FORMULA :
- C9-H8-O
- MOLECULAR WEIGHT :
- 132.17
- WISWESSER LINE NOTATION :
- T66 BO CHJ
HEALTH HAZARD DATAACUTE TOXICITY DATA - TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 250 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- EJMCA5 European Journal of Medicinal Chemistry--Chimie Therapeutique. (Editions Scientifiques Elsevier, 29 rue Buffon, F-75005, Paris, France) V.9- 1974- Volume(issue)/page/year: 11,81,1976
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Safety Information
Customs
| HS Code | 2901299090 |
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| Summary | 2901299090 unsaturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
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Synonyms
| Benzopyran |
| 2H-Chromene |
| 1,2-Benzopyran |
| 3-Chromene |
| chromene |
| 1,2-Chromene |
| 1-benzopyran |
| 2H-1-BENZOPYRAN |
