- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: chromotrope 2b
- Price: Check
- Purity: 85.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: chromotrope 2b
- Price: ￥148.0/5g ￥628.0/25g
- Purity: 97.0%
- Stocking Period: 3 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- DC Chemicals Limited
- China
- Product Name: Chromotrope 2B
- Price: $Inquiry/100mg $Inquiry/250mg $Inquiry/500mg
- Purity: 98.0%
- Stocking Period: 3 Day
- Contact: Tony Cao
- Email: sales@dcchemicals.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: Chromotrope 2B
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
548-80-1
548-80-1 structure
- Name: chromotrope 2b
- Chemical Name: disodium,(3E)-5-hydroxy-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate
- CAS Number: 548-80-1
- Molecular Formula: C16H9N3Na2O10S2
- Molecular Weight: 513.36600
- Catalog: analytical chemistry Analytical reagent Spectral analysis
- Create Date: 2018-02-13 08:00:00
- Modify Date: 2025-08-22 21:06:49
| Name | disodium,(3E)-5-hydroxy-3-[(4-nitrophenyl)hydrazinylidene]-4-oxonaphthalene-2,7-disulfonate |
|---|---|
| Synonyms |
Chromatrope 2B
EINECS 208-959-9 Chromotrope Red 4B p-Nitrobenzeneazochromotropic acid sodium salt Chromotrope 2B disodium salt chromotrope 2B MFCD00003951 Naphtocard Fast Red 3B Khromotrop 2B Acid Red 176 |
| Melting Point | 300 °C |
|---|---|
| Molecular Formula | C16H9N3Na2O10S2 |
| Molecular Weight | 513.36600 |
| Exact Mass | 512.95200 |
| PSA | 242.16000 |
| LogP | 5.06760 |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H315-H319-H335 |
| Precautionary Statements | P261-P305 + P351 + P338 |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
| Hazard Codes | Xi: Irritant; |
| Risk Phrases | R36/37/38 |
| Safety Phrases | S26-S36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| HS Code | 2927000090 |
| HS Code | 2927000090 |
|---|---|
| Summary | 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |