2H-Furo[2,3-h]-1-benzopyran-2-one cas no:523-50-2
Synonyms: Isopsoralen(6CI);2-Propenoic acid, 3-(4-hydroxy-5-benzofuranyl)-, d-lactone;Angecin;Angelicin (coumarin derivative);Furo[2,3-h]coumarin;Furo[5',4':7,8]coumarin;NSC 404563;Isopsoralen;
Name2H-Furo[2,3-h]-1-benzopyran-2-one
CAS523-50-2
SynonymsIsopsoralen(6CI);2-Propenoic acid, 3-(4-hydroxy-5-benzofuranyl)-, d-lactone;Angecin;Angelicin (coumarin derivative);Furo[2,3-h]coumarin;Furo[5',4':7,8]coumarin;NSC 404563;Isopsoralen;
EINECS(EC#)201-480-6
Molecular FormulaC11H6O3
Molecular Weight186.16
AppearanceWhite Solid
refractive index1.667
storage temp2-8°C
Hazard Xn:Harmful;
Risk R20/21/22;R36/37/38;R40
Safety
Poison by ingestion and intraperitoneal routes. Questionable carcinogen. Mutation data reported. A tranquilizer, sedative, and anticonvulsant. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety information of 2-Oxo-(2H)-furo(2,3-h)-1-benzopyran (523-50-2):
Hazard Codes 
Xn,Xi
Risk Statements
20/21/22 Harmful by inhalation, in contact with skin and if swallowed
36/37/38 Irritating to eyes, respiratory system and skin
40 Limited evidence of a carcinogenic effect
Safety Statements
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39 Wear suitable protective clothing, gloves and eye/face protection
WGK Germany 3
RTECS LV0940000
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mmo-esc 40 mg/L
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MUREAV Mutation Research. 58 (1978),23. |
| 2. |
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mmo-smc 50 µmol/L
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BUCABS Bulletin du Cancer. 67 (1980),245. |
| 3. |
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orl-rat LD50:322 mg/kg
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IJMRAQ Indian Journal of Medical Research. 63 (1975),833. |
| 4. |
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ipr-rat LD50:165 mg/kg
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IJMRAQ Indian Journal of Medical Research. 63 (1975),833. |
| 5. |
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ipr-mus LD50:254 mg/kg
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IJMRAQ Indian Journal of Medical Research. 63 (1975),833. |
