- 商品介绍
- 规格参数
- 包装参数
产品介绍
Product Description
General description
α-Naphtholphthalein, a phthalein dye is a pH indicator between 7.3 (colorless) and 8.7 (greenish-blue). Applications include inks, markers, detecting viable cells, food storage, and many more.
技术参数
Specifications
| grade | practical grade |
| Quality Level | 200 |
| assay | >80% NaOH basis (titration) |
| form | powder |
| technique(s) | titration: suitable |
| pH | 7.3-8.7, colorless to blue-green |
| mp | 238-240 °C (lit.) |
| solubility | ethanol: 50 mg/mL, clear, red-orange |
| application(s) | diagnostic assay manufacturing hematology histology |
| storage temp. | room temp |
| SMILES string | Oc1ccc(c2ccccc12)C3(OC(=O)c4ccccc34)c5ccc(O)c6ccccc56 |
| InChI | 1S/C28H18O4/c29-25-15-13-23(17-7-1-3-9-19(17)25)28(22-12-6-5-11-21(22)27(31)32-28)24-14-16-26(30)20-10-4-2-8-18(20)24/h1-16,29-30H |
| InChI key | HQHBAGKIEAOSNM-UHFFFAOYSA-N |
| 长度(mm) | |
| 宽度(mm) | |
| 高度(mm) | |
| 重量(kg) |
猜你喜欢
-
询价
-
询价
-
询价
-
¥ 1573.49
-
¥ 1302.89
-
¥ 1779.22
-
¥ 8293.41
-
询价
-
询价
-
¥ 3442.25
-
询价
-
询价
-
询价
-
¥ 4968.78
-
¥ 2883.61
-
瓶顶过滤器-500ml容量,MF75TM系列，聚苯乙烯外壳，75mmSFCA滤膜，孔径0.2um,适合瓶颈尺寸45mm，12/箱，291-4520，Nalgene，Thermofisher，赛默飞世尔¥ 2856.42
-
¥ 4897.21
-
询价
-
¥ 1196.00
-
¥ 2099.27
微信小程序
7X24小时在线咨询