CAS 877-24-7: Potassium hydrogen phthalate
Formula:C8H6O4·K
InChI:InChI=1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);
InChI key:InChIKey=XCCFSZODNJHPEF-UHFFFAOYSA-N
SMILES:[K].O=C(O)C=1C=CC=CC1C(=O)O
- Synonyms:
- 1,2-Benzenedicarboxylic acid, potassium salt (1:1)
- Hidrogenoftalato De Potasio
- Hydrogen potassium phthalate
- Hydrogenophtalate de potassium
- KAP
- Kaliumhydrogenphthalat
- Monopotassium 1,2-benzenedicarboxylate
- Monopotassium phthalate
- Phthalate, Potassium Hydrogen
- Phthalic Acid Monopotassium Salt
- See more synonyms
- Potassium Acid Phthalate
- Potassium Biphthalate
- Potassium Hydrogen Phthalate
- Potassium Phthalate
- 1,2-Benzenedicarboxylic acid, monopotassium salt

Potassium Hydrogen Phthalate
CAS:877-24-7
Formula:
C8H5KO4
Purity:
>99.8%(T)
Color and Shape:
White to Almost white powder to crystal
Molecular weight:
204.22
Ref: 3B-P0309
25g | 27.00 € | ||
500g | 60.00 € |
Estimated delivery in United States, on Monday 7 Apr 2025

Potassium hydrogen phthalate, 99%
CAS:877-24-7
Potassium hydrogen phthalate is used as a primary standard for acid- base titrations as well …
Formula:
C8H5KO4
Purity:
99%
Color and Shape:
White, Crystals or powder or crystalline powder or fused solid or flakes
Molecular weight:
204.22
Ref: 02-A12895
1kg | 141.00 € | ||
5kg | To inquire | ||
250g | 49.00 € |
Estimated delivery in United States, on Tuesday 8 Apr 2025

Potassium hydrogen phthalate, primary standard, ACS, 99.95-100.05%
CAS:877-24-7
As a primary standard for preparing volumetric alkali solutions and as a buffer in pH …
Formula:
C8H5KO4
Purity:
99.95-100.05%
Color and Shape:
White, Powder or crystals or crystalline powder
Molecular weight:
204.22
Ref: 02-033351
1kg | 144.00 € | ||
250g | 73.00 € |
Estimated delivery in United States, on Tuesday 8 Apr 2025

Potassium hydrogen phthalate, 0.05N Standardized Solution
CAS:877-24-7
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. …
Formula:
C8H5KO4
Color and Shape:
Liquid
Molecular weight:
204.22
Ref: 02-035603
1l | 55.00 € | ||
500ml | 35.00 € |
Estimated delivery in United States, on Tuesday 8 Apr 2025

Potassium hydrogen phthalate
CAS:877-24-7
Purity:
95.0%
Color and Shape:
Solid
Molecular weight:
204.2220001220703
Ref: 10-F492528
100g | 24.00 € | ||
500g | 20.00 € |
Estimated delivery in United States, on Thursday 10 Apr 2025

Saline Buffer PH4 (Phthalate) 50 tablets
CAS:877-24-7
Color and Shape:
Liquid, No data available.
Molecular weight:
204.2220001220703
Ref: 10-F545135
1ea | 25.00 € |
Estimated delivery in United States, on Thursday 10 Apr 2025

Potassium biphthalate
CAS:877-24-7
Formula:
C8H5KO4
Purity:
95%
Color and Shape:
Solid
Molecular weight:
204.2212
Ref: IN-DA0035IJ
100g | 26.00 € | ||
500g | 25.00 € |
Estimated delivery in United States, on Monday 14 Apr 2025

Phthalic Acid Potassium Salt
CAS:877-24-7
Formula:
C8H5O4·K
Color and Shape:
White To Off-White Solid
Molecular weight:
165.12 39.10
Ref: 4Z-P-151003
5mg | To inquire | ||
10mg | To inquire | ||
25mg | To inquire | ||
50mg | To inquire | ||
100mg | To inquire |
Estimated delivery in United States, on Tuesday 15 Apr 2025

Potassium hydrogen phthalate
CAS:877-24-7
Formula:
C8H5KO4
Purity:
≥ 99.5%
Color and Shape:
White crystalline powder or colourless crystals
Molecular weight:
204.23
Ref: 7W-GK2355
1kg | 89.00 € | ||
100g | 21.00 € | ||
250g | 33.00 € | ||
500g | 53.00 € |
Estimated delivery in United States, on Tuesday 15 Apr 2025

Potassium phthalate monobasic
CAS:877-24-7
Formula:
·C8H5O4·K
Color and Shape:
Solid
Molecular weight:
204.22g/mol
Ref: 54-OR921972
Undefined size | To inquire |
Estimated delivery in United States, on Tuesday 15 Apr 2025

Potassium Hydrogen Phthalate
Controlled ProductCAS:877-24-7
Formula:
C8H5O4·K
Color and Shape:
Neat
Molecular weight:
204.22
Ref: 86-MM2540.06-0250
250mg | 1,642.00 € |
Estimated delivery in United States, on Thursday 17 Apr 2025

Buffer solution pH 4, Phthalate buffer, traceable to NIST, ready to use
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
C8H5KO4
Color and Shape:
Clear colorless, Solution
Molecular weight:
204.22
Ref: AC-38383
1l | 61.00 € | ||
500ml | 38.00 € |
Estimated delivery in United States, on Thursday 17 Apr 2025

Potassium hydrogen phthalate, for HPLC
CAS:877-24-7
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
C8H5KO4
Color and Shape:
Crystalline powder, White
Molecular weight:
204.22
Ref: AC-46385
50g | 31.00 € | ||
250g | 112.00 € |
Estimated delivery in United States, on Thursday 17 Apr 2025

Potassium hydrogen phthalate, 99+%
CAS:877-24-7
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
C8H5KO4
Purity:
99+%
Color and Shape:
Crystalline powder or crystals, White
Molecular weight:
204.22
Ref: AC-41795
500g | 108.00 € | ||
2500g | 254.00 € |
Estimated delivery in United States, on Thursday 17 Apr 2025

Potassium hydrogen phthalate, 99.99%, acidimetric standard
CAS:877-24-7
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
C8H5KO4
Purity:
99.99%
Color and Shape:
White, Crystalline powder or crystals
Molecular weight:
204.22
Ref: AC-17712
100g | 51.00 € | ||
500g | 147.00 € | ||
2500g | 384.00 € |
Estimated delivery in United States, on Thursday 17 Apr 2025

Potassium hydrogen phthalate, ACS reagent, acidimetric standard
CAS:877-24-7
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …
Formula:
C8H5KO4
Color and Shape:
Crystalline powder or crystals, White
Molecular weight:
204.22
Ref: AC-42406
100g | 47.00 € | ||
500g | 123.00 € | ||
2500g | To inquire |
Estimated delivery in United States, on Thursday 17 Apr 2025

Potassium Biphthalate
CAS:877-24-7
Applications Potassium Biphthalate is used as buffer solution. References Mussini, P., et al.: Pure Appl. …
Formula:
C8H5O4·K
Color and Shape:
Neat
Molecular weight:
204.22
Ref: TR-P698758
1g | 99.00 € | ||
25g | 128.00 € | ||
100g | 169.00 € |
Estimated delivery in United States, on Thursday 24 Apr 2025

Potassium hydrogen phthalate
CAS:877-24-7
Please enquire for more information about Potassium hydrogen phthalate including the price, delivery time and …
Formula:
C8H5KO4
Purity:
Min. 95%
Color and Shape:
Powder
Molecular weight:
204.22 g/mol
Ref: 3D-FP43259
2kg | 315.00 € | ||
5kg | 598.00 € | ||
10kg | 906.00 € | ||
25kg | 1,600.00 € |
Estimated delivery in United States, on Wednesday 7 May 2025

Potassium Hydrogen Phthalate for HPLC & UV Spectroscopy, 99.9%
CAS:877-24-7
Formula:
C5H8KO4
Purity:
min. 99.9%
Color and Shape:
White, Crystalline powder, Clear, Colorless
Molecular weight:
204.22
Ref: SR-49017
500g | 23.00 € |
Estimated delivery in United States, on Monday 12 May 2025

Potassium Hydrogen Phthalate ExiPlus, Multi-Compendial, 99.95%
CAS:877-24-7
Formula:
C8H5KO4
Purity:
min. 99.9%
Color and Shape:
White, Crystalline powder, Clear, Colourless
Molecular weight:
204.23
Ref: SR-29467
500g | 27.00 € |
Estimated delivery in United States, on Monday 12 May 2025