250-84-0
250-84-0 structure
- Name: Thieno(2,3-b)thiophene
- Chemical Name: thieno[2,3-b]thiophene
- CAS Number: 250-84-0
- Molecular Formula: C6H4S2
- Molecular Weight: 140.226
- Catalog: Biochemical Amino acids and their derivatives BOC-amino acid
- Create Date: 2018-04-15 08:00:00
- Modify Date: 2024-01-08 22:07:44
| Name | thieno[2,3-b]thiophene |
|---|---|
| Synonyms |
thieno<2,3-b>thiophene
1,6-Thiophthene Thieno(2,3-b)thiophene Thieno[2,3-b]thiophene 1,6-Dithiapentalene thieno[2,3-b]thiophen Polythieno[2,3-b]thiophene Thiophthene |
| Density | 1.4±0.1 g/cm3 |
|---|---|
| Boiling Point | 225.9±13.0 °C at 760 mmHg |
| Melting Point | 7 °C |
| Molecular Formula | C6H4S2 |
| Molecular Weight | 140.226 |
| Flash Point | 64.3±6.0 °C |
| Exact Mass | 139.975433 |
| PSA | 56.48000 |
| LogP | 5.31 |
| Vapour Pressure | 0.1±0.4 mmHg at 25°C |
| Index of Refraction | 1.729 |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H302-H315-H319-H335 |
| Precautionary Statements | P261-P305 + P351 + P338 |
| Personal Protective Equipment | Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter |
| Safety Phrases | S22-S24/25 |
| RIDADR | UN 3334 |
| HS Code | 2934999090 |
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |