Disodium dihydrogen pyrophosphate(SAPP) - AR , CAS No.7758-16-9

CAS: 7758-16-9 Cat. No.: D165310 Molecular Weight: 221.94 EC Number: 231-835-0

GRADE & PURITY AR

Synonyms

sodium dihydrogendiphosphate | CAS-68915-31-1 | DISODIUM PYROPHOSPHATE | Dinatriumpyrophosphat [German] | DISODIUM PYROPHOSPHATE [HSDB] | Disodium dihydrogen pyrophosphate | Grahamsches salz | SODIUMACIDPYROPHOSPHATE | disodium;[hydroxy(oxido)phosphoryl]

Storage

Room temperature

Shipped In

Normal

Overview

Disodium dihydrogen pyrophosphate can be used as a heavymetal extractant from sludge.

Application:
Disodium dihydrogen pyrophosphate has been used:
· as a setting retardant;
· as a component of STOP-washing buffer for in gel kinase assay;
· as protease and phosphatase inhibitor in the preparation of western blot lysis buffer.

Specifications

Synonyms

sodium dihydrogendiphosphate | CAS-68915-31-1 | DISODIUM PYROPHOSPHATE | Dinatriumpyrophosphat [German] | DISODIUM PYROPHOSPHATE [HSDB] | Disodium dihydrogen pyrophosphate | Grahamsches salz | SODIUMACIDPYROPHOSPHATE | disodium;[hydroxy(oxido)phosphoryl]

Specifications & Purity

AR

Storage

Room temperature

Shipped In

Normal

Grade

AR

Names and Identifiers

• Canonical Smiles: OP(=O)([O-])OP(=O)(O)[O-].[Na+].[Na+]
• IUPAC Name: disodium;[hydroxy(oxido)phosphoryl] hydrogen phosphate
• InChIKey: GYQBBRRVRKFJRG-UHFFFAOYSA-L
• INCHI: 1S/2Na.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+1;/p-2
• Isomeric SMILES: OP(=O)([O-])OP(=O)(O)[O-].[Na+].[Na+]
• WGK Germany: 1
• RTECS: UX6475000
• Molecular Weight: 221.94
• Reaxy-Rn: 11323758
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11323758&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Alkali metal oxoanionic compounds
      • Subclass Alkali metal pyrophosphates

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Alkali metal oxoanionic compounds
• Subclass: Alkali metal pyrophosphates
• Intermediate Tree Nodes: Not available
• Direct Parent: Alkali metal pyrophosphates
• Alternative Parents: Inorganic sodium salts Inorganic oxides
• Molecular Framework: Not available
• Substituents: Alkali metal pyrophosphate - Inorganic sodium salt - Inorganic oxide - Inorganic salt
• Description: This compound belongs to the class of inorganic compounds known as alkali metal pyrophosphates. These are inorganic compounds in which the largest oxoanion is pyrophosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Fully miscible in water. Insoluble in alcohol and ammonia.
• Melt Point(°C): >450℃
• Molecular Weight: 221.940 g/mol
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 7
• Rotatable Bond Count: 2
• Exact Mass: 221.907 Da
• Monoisotopic Mass: 221.907 Da
• Topological Polar Surface Area: 130.000 Ų
• Heavy Atom Count: 11
• Formal Charge: 0
• Complexity: 143.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 3

XLogP3

References

1. Linli Dai, Yi Xie, Yongkui Zhang, Yabo Wang.  (2023)  Treatment of bisphenol pollutant in water by N,P-co-doped carbon nanosheet: Fast degradation, toxicity elimination and reaction mechanism investigation.  ENVIRONMENTAL POLLUTION,      [PMID:37044253] [10.1016/j.envpol.2023.121586]

2. Umarbek Alimov, Kaiyu Zhao, Jiayin Hu, Yafei Guo, Lingzong Meng, Xiuyun Pan, Tianlong Deng.  (2021)  Volumetric properties of disodium dihydrogen pyrophosphate aqueous solution from 283.15 to 363.15 K at 101.325 kPa.  FOOD CHEMISTRY,      [PMID:33677210] [10.1016/j.foodchem.2021.129410]

3. Yin-chuan Wang, Wei-li Xu, Yu-peng Lu, Wen-hua Xu, Han Yin, Gui-yong Xiao.  (2019)  Investigation of nature of starting materials on the construction of hydroxyapatite 1D/3D morphologies.  Materials Science & Engineering C-Materials for Biological Applications,      [PMID:31924047] [10.1016/j.msec.2019.110408]

4. Fang Dahui, Wan Lei, Jiang Qike, Zhang Hongjie, Tang Xuejun, Qin Xiaoping, Shao Zhigang, Wei Zidong.  (2019)  Wavy PtCu alloy nanowire networks with abundant surface defects enhanced oxygen reduction reaction.  Nano Research,  12  (11): (2766-2773).  [PMID:] [10.1007/s12274-019-2511-8]

5. Yan Jianfeng, Han Rongrong, Li Yijing, Li Houshen, Song Yanguang, Yu Jilian, Duan Junling, Ai Shiyun.  (2025)  Facile synthesis of carboxylated cellulose nanocrystals via a modified potassium permanganate oxidation method.  CELLULOSE,      [PMID:] [10.1007/s10570-025-06830-2]