Diphosphonic acid
Also known as Pyrophosphonic acid, [(OH)P(H)(O)OP(H)(O)(OH)], mu-oxido-bis(hydridohydroxidooxidophosphorus)
Key facts
What buyers check first
- CAS number
- 36465-90-4
- Formula
- H2O5P2+2
- Molar mass
- 143.96 g/mol
- HS code
- 283510
- Category
- Phosphates and phosphorus salts
What is Diphosphonic acid?
Plain description, key identifiers and synonyms
Diphosphonic acid is a phosphorus oxoacid and an acyclic phosphorus acid anhydride. It is a conjugate acid of a diphosphonate(1-).
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- hydroxy-[hydroxy(oxo)phosphaniumyl]oxy-oxophosphanium
- CAS number
- 36465-90-4
- Molecular formula
- H2O5P2+2
- InChIKey
- YWEUIGNSBFLMFL-UHFFFAOYSA-P
- InChI
- InChI=1S/O5P2/c1-6(2)5-7(3)4/p+2
- SMILES (canonical and isomeric)
- O[P+](=O)O[P+](=O)O
Synonyms
- Pyrophosphonic acid
- [(OH)P(H)(O)OP(H)(O)(OH)]
- mu-oxido-bis(hydridohydroxidooxidophosphorus)
- ((OH)P(H)(O)OP(H)(O)(OH))
- Diphosphorsaure
- hydroxy-[hydroxy(oxo)phosphaniumyl]oxy-oxophosphanium
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 143.96 g/molcalc.Computed value |
|---|---|
| Exact mass | 143.9366 Dacalc.Computed value |
| LogP (octanol/water) | 0.3calc.Computed value |
| Topological polar surface area | 83.83 Ųcalc.Computed value |
| Hydrogen bond donors | 2calc.Computed value |
| Hydrogen bond acceptors | 3calc.Computed value |
| Rotatable bonds | 2calc.Computed value |
| Heavy atoms | 7calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0calc.Computed value |
| Formal charge | 2calc.Computed value |
| Stereocentres | 2calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Diphosphonic acid suppliers
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Diphosphonic acid price
Indicative price range per kg from live supplier offers
Suppliers quote this chemical on request. Send one free request and compare quotes side by side.
Uses and applications
What the substance is used for, by industry and function
Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.
Regulatory status
Inventories, regulations and trade controls that list this substance
No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Diphosphonic acid is traded under.
Phosphinates (hypophosphites) and phosphonates (phosphites)
- China69.2%
- United States6.5%
- Switzerland * partner reported4.5%
- United States12.5%
- Germany10.9%
- Malaysia9.8%
* Partner reported figures, a lower bound.
The HS code shown for Diphosphonic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Similar structures
Nearest neighbours by Morgan fingerprint Tanimoto similarity
Frequently asked questions
Quick answers about Diphosphonic acid, based on the data on this page
What is Diphosphonic acid?
Guides for buyers
Practical guides that help when you source, ship or handle Diphosphonic acid
- Article, SourcingHow to write an RFQ that gets fast and accurate quotesWhat suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, Trade and logisticsHS codes for chemicals and why they matterHow the Harmonized System classifies chemicals, the chapters that matter, the rules for chemically defined compounds and mixtures, and practical steps to find the right code.Read
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