alpha-Naphtholphthalein
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- $37 - $2850
- Product name: alpha-Naphtholphthalein
- CAS: 596-01-0
- MF: C28H18O4
- MW: 418.44
- EINECS:209-875-5
- MDL Number:MFCD00036202
- Synonyms:1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-1-naphthalenyl)-;à-naphtholphthalein;3,3-bis(4-hydroxy-1-naphthyl)phthalide;A-NAPHTHOLPHTHALEIN PRACTICAL GRADE;ALPHA-NAPHTHOLPHTHALEIN INDICATOR;1-NAPHTHOLPHTHALEIN, INDICATOR;ALPHA-NAPHTHOLPHTHALEIN(0.1% IN CA. 50% ETHANOL)[FOR PH DETERMINATION];alpha-Naphtholphthalein, indicator, pure
21 prices
Selected condition：
Brand
- AHH
- AK Scientific
- Alfa Aesar
- Alichem
- American Custom Chemicals Corporation
- Chemenu
- Chem-Impex
- Crysdot
- Sigma-Aldrich
- TCI Chemical
- TRC
Package
- 10mg
- 1g
- 5g
- 10g
- 25g
- 100g
- ManufacturerAHH
- Product numberMT-19328
- Product description1-Naphtholphthalein 85%
- Packaging25g
- Price$628
- Updated2021-12-16
- Buy
- ManufacturerAK Scientific
- Product numberZ3617
- Product descriptionalpha-Naphtholphtalein
- Packaging25g
- Price$399
- Updated2021-12-16
- Buy
- ManufacturerAlfa Aesar
- Product number041221
- Product descriptionalpha-Naphtholphthalein
- Packaging1g
- Price$41.65
- Updated2024-03-01
- Buy
- ManufacturerAlfa Aesar
- Product number041221
- Product descriptionalpha-Naphtholphthalein
- Packaging5g
- Price$120.65
- Updated2024-03-01
- Buy
- ManufacturerAlfa Aesar
- Product number041221
- Product descriptionalpha-Naphtholphthalein
- Packaging25g
- Price$405.65
- Updated2024-03-01
- Buy
- ManufacturerAlichem
- Product number596010
- Product description3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one
- Packaging25g
- Price$250.92
- Updated2021-12-16
- Buy
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberCHM0018271
- Product descriptionALPHA-NAPHTHOLPHTHALEIN 95.00%
- Packaging1G
- Price$657.01
- Updated2021-12-16
- Buy
- ManufacturerChemenu
- Product numberCM140840
- Product description3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95%
- Packaging25g
- Price$230
- Updated2021-12-16
- Buy
- ManufacturerChem-Impex
- Product number42481
- Product descriptionα-Naphtholphthalein,≥80%(Assaybytitration),Practicalgrade ≥80%(Assaybytitration)
- Packaging1G
- Price$89.69
- Updated2021-12-16
- Buy
- ManufacturerCrysdot
- Product numberCD11097557
- Product description3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95+%
- Packaging5g
- Price$69
- Updated2021-12-16
- Buy
- ManufacturerCrysdot
- Product numberCD11097557
- Product description3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95+%
- Packaging10g
- Price$131
- Updated2021-12-16
- Buy
- ManufacturerCrysdot
- Product numberCD11097557
- Product description3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95+%
- Packaging25g
- Price$246
- Updated2021-12-16
- Buy
- ManufacturerSigma-Aldrich
- Product numberN8257
- Product descriptionα-Naphtholphthalein practical grade
- Packaging1g
- Price$118
- Updated2024-03-01
- Buy
- ManufacturerSigma-Aldrich
- Product number1.06246
- Product description1-Naphtholphthalein indicator
- Packaging1g
- Price$285
- Updated2024-03-01
- Buy
- ManufacturerSigma-Aldrich
- Product number1.06246
- Product description1-Naphtholphthalein indicator
- Packaging5G
- Price$326
- Updated2024-03-01
- Buy
- ManufacturerSigma-Aldrich
- Product numberN8257
- Product descriptionα-Naphtholphthalein practical grade
- Packaging5g
- Price$388
- Updated2024-03-01
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| AHH | MT-19328 | 1-Naphtholphthalein 85% | 25g | $628 | 2021-12-16 | Buy |
| AK Scientific | Z3617 | alpha-Naphtholphtalein | 25g | $399 | 2021-12-16 | Buy |
| Alfa Aesar | 041221 | alpha-Naphtholphthalein | 1g | $41.65 | 2024-03-01 | Buy |
| Alfa Aesar | 041221 | alpha-Naphtholphthalein | 5g | $120.65 | 2024-03-01 | Buy |
| Alfa Aesar | 041221 | alpha-Naphtholphthalein | 25g | $405.65 | 2024-03-01 | Buy |
| Alichem | 596010 | 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one | 25g | $250.92 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0018271 | ALPHA-NAPHTHOLPHTHALEIN 95.00% | 1G | $657.01 | 2021-12-16 | Buy |
| Chemenu | CM140840 | 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95% | 25g | $230 | 2021-12-16 | Buy |
| Chem-Impex | 42481 | α-Naphtholphthalein,≥80%(Assaybytitration),Practicalgrade ≥80%(Assaybytitration) | 1G | $89.69 | 2021-12-16 | Buy |
| Crysdot | CD11097557 | 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95+% | 5g | $69 | 2021-12-16 | Buy |
| Crysdot | CD11097557 | 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95+% | 10g | $131 | 2021-12-16 | Buy |
| Crysdot | CD11097557 | 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one 95+% | 25g | $246 | 2021-12-16 | Buy |
| Sigma-Aldrich | N8257 | α-Naphtholphthalein practical grade | 1g | $118 | 2024-03-01 | Buy |
| Sigma-Aldrich | 1.06246 | 1-Naphtholphthalein indicator | 1g | $285 | 2024-03-01 | Buy |
| Sigma-Aldrich | 1.06246 | 1-Naphtholphthalein indicator | 5G | $326 | 2024-03-01 | Buy |
| Sigma-Aldrich | N8257 | α-Naphtholphthalein practical grade | 5g | $388 | 2024-03-01 | Buy |
Properties
Melting point :238-240 °C(lit.)
Boiling point :496.21°C (rough estimate)
Density :1.1532 (rough estimate)
vapor density :14.44 (vs air)
refractive index :1.6400 (estimate)
storage temp. :Store below +30°C.
solubility :Solubility Practically insoluble in water; soluble in ethanol
pka :8.0, 8.2, 8.5(at 25℃)
form :Powder
color :Pink to beige or brown
PH Range :7.1(brownish)-8.3(blue/green)
PH :pH : 7.1～8.7
Odor :Characteristic odour
Water Solubility :Soluble in ethanol. Insoluble in water.
λmax :648nm
Merck :14,6389
BRN :97816
InChIKey :HQHBAGKIEAOSNM-UHFFFAOYSA-N
CAS DataBase Reference :596-01-0(CAS DataBase Reference)
Boiling point :496.21°C (rough estimate)
Density :1.1532 (rough estimate)
vapor density :14.44 (vs air)
refractive index :1.6400 (estimate)
storage temp. :Store below +30°C.
solubility :Solubility Practically insoluble in water; soluble in ethanol
pka :8.0, 8.2, 8.5(at 25℃)
form :Powder
color :Pink to beige or brown
PH Range :7.1(brownish)-8.3(blue/green)
PH :pH : 7.1～8.7
Odor :Characteristic odour
Water Solubility :Soluble in ethanol. Insoluble in water.
λmax :648nm
Merck :14,6389
BRN :97816
InChIKey :HQHBAGKIEAOSNM-UHFFFAOYSA-N
CAS DataBase Reference :596-01-0(CAS DataBase Reference)
Safety Information
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Description
Indicator in 0.1% or 0.04% alcohol solution.α-Naphtholphthalein is used as a pH indicator and operates in the pH ranges between 7.3 and 8.7. It is also used in the designing of optical carbon dioxide sensor based on fluorescence intensity.Related product price
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Suppliers and manufacturers
Capot Chemical Co.,Ltd.
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