HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 14549Generated: October 27, 2026
1,1,2,3,3-Pentamethylindan
1,1,2,3,3-Pentamethylindane · 1,1,2,3,3-pentamethylindan · 1,1,2,3,3-pentamethyl-2H-indene · 1H-Indene, 2,3-dihydro-1,1,2,3,3-pentamethyl-
https://huagongshe.com/en/chemical/14549
Identifiers & Physical Properties
| CAS No. | 1203-17-4 |
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| Molecular formula | C14H20 |
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| Average molar mass | 188.31 g/mol |
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| Monoisotopic mass | 188.15650064 g/mol |
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| SMILES | CC1C(C)(C)c2ccccc2C1(C)C |
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| InChIKey | ZCMKNGQFIXAHLP-UHFFFAOYSA-N |
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| PubChem CID | 14549 |
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| EC No. | 214-868-5 |
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| DTXSID | DTXSID8027371 |
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Chemical & Physical Properties
| XLogP | 4.8 |
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| Topological polar surface area | 0 |
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| Hydrogen bond donors | 0 |
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| Hydrogen bond acceptors | 0 |
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| Rotatable bonds | 0 |
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| Heavy atoms | 14 |
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| Formal charge | 0 |
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| Complexity | 200 |
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| Chemical classes | Other Classes -> Aromatic Hydrocarbons |
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| SpringerMaterials Properties | Density |
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| Fragrances | Fragrance Ingredient (1H-Indene, 2,3-dihydro-1,1,2,3,3-pentamethyl-) -> IFRA transparency List |
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| Flash point | 89 °C |
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| Physical Description | Liquid[IUCLID] |
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| Boiling point | 68-72 °C(Press: 2 Torr) |
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| Density | 0.9146 g/cm3(Temp: 22 °C) |
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| FDA UNII | Y1F6V1XEI9 |
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| EPA Substance Registry System | 1H-Indene, 2,3-dihydro-1,1,2,3,3-pentamethyl- (1203-17-4) |
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| TSCA inventory status | TSCA listed |
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| Hazardous substances data | 1203-17-4(Hazardous Substances Data) |
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| REACH registrations | Active |
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Safety & Regulations
| Regulatory information | Chemical: 1H-Indene, 2,3-dihydro-1,1,2,3,3-pentamethyl-REACH registered substance: 1,1,2,3,3-pentamethylindan (EC: 214-868-5) |
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| Other safety information | IMAP assessments - 1H-Indene, 2,3-dihydro-1,1,2,3,3-pentamethyl-: Human health tier I assessment |
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| Hazards summary | See 1-Methyl-1H-indene. |
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| TSCA inventory status | TSCA listed |
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| REACH registrations | Active |
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| Hazardous substances data | 1203-17-4(Hazardous Substances Data) |
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