- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: Palmitic acid
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: Pyromellitic acid
- Price: ￥168.0/100g ￥468.0/500g
- Purity: 98.0%
- Stocking Period: 2 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 1,2,4,5-Benzenetetracarboxylic acid
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
- Henan Tianfu Chemical Co., Ltd.
- China
- Product Name: TIANFU-CHEM CAS:89-05-4 1,2,4,5-Benzenetetracarboxylic acid
- Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
- Purity: 99.0%
- Stocking Period: Inquiry
- Contact: Anson
- Email: info@tianfuchem.com
- Zhongshan Xingrui Chemical Co. , Ltd.
- China
- Product Name: Pyromellitic acid
- Price: ￥Inquiry/25kg
- Purity: 99.0%
- Stocking Period: Inquiry
- Contact: Wang Jie
- Email: 3096638339@qq.com
89-05-4
89-05-4 structure
- Name: Pyromellitic acid
- Chemical Name: pyromellitic acid
- CAS Number: 89-05-4
- Molecular Formula: C10H6O8
- Molecular Weight: 254.150
- Catalog: Chemical reagent Organic reagent Aromatic acid
- Create Date: 2018-06-07 13:53:32
- Modify Date: 2025-08-20 10:16:28
| Name | pyromellitic acid |
|---|---|
| Synonyms |
1,2,4,5-benzene tetracarboxylic acid
1,2,4,5-Benzenetetracarboxylic acid MFCD00002471 UNII:D9UXG2U6ZU EINECS 201-879-5 Benzene-1,2,4,5-tetracarboxylic acid |
| Density | 1.8±0.1 g/cm3 |
|---|---|
| Boiling Point | 585.8±50.0 °C at 760 mmHg |
| Melting Point | 281-284.5 °C(lit.) |
| Molecular Formula | C10H6O8 |
| Molecular Weight | 254.150 |
| Flash Point | 322.1±26.6 °C |
| Exact Mass | 254.006271 |
| PSA | 149.20000 |
| LogP | 0.44 |
| Vapour Pressure | 0.0±1.7 mmHg at 25°C |
| Index of Refraction | 1.701 |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. |
| Water Solubility | 1.5 g/100 mL (20 ºC) |
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
|
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H319 |
| Precautionary Statements | P280-P305 + P351 + P338-P337 + P313 |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
| Hazard Codes | Xi:Irritant |
| Risk Phrases | R36/37/38 |
| Safety Phrases | S26-S36-S37/39-S24/25 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| RTECS | DB9275000 |
| HS Code | 2917399090 |
| Precursor 9 | |
|---|---|
| DownStream 8 | |
![2,3,5,6-tetrahydro-2,6-diethylbenzo[1,2-c:4,5-c']dipyrrole-1,7-dione structure](https://image.chemsrc.com/caspic/203/85068-00-4.png)
![2,3,6,7-Tetrahydro-2,6-di-n-butylbenzo[1,2-c:4,5-c']dipyrrole-1,5-dione structure](https://image.chemsrc.com/caspic/438/85067-96-5.png)
![2,3,6,7-Tetrahydro-2,6-dimethylbenzo[1,2-c:4,5-c']dipyrrole-1,5-dione structure](https://image.chemsrc.com/caspic/476/85067-95-4.png)
| HS Code | 2917399090 |
|---|---|
| Summary | 2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |