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Dimethyl acid pyrophosphate

HCID 97004
NotesReactions
Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
26644-00-8
Standard SMILES
COP(=O)(O)OP(=O)(O)OC
InChIKey
BPNLLIHZSAFABG-UHFFFAOYSA-N
Molecular formula
C2H8O7P2
Average molar mass
206.03 g/mol
Monoisotopic mass
205.97452659

Overview

Dimethyl acid pyrophosphate appears as a liquid. Noncombustible. May severely irritate skin, eyes and mucous membranes. Avoid contact.

Names & identifiers

Preferred name
Dimethyl acid pyrophosphate
IUPAC
[hydroxy(methoxy)phosphoryl] methyl hydrogen phosphate
English name
Dimethyl acid pyrophosphate
Molecular formula
C2H8O7P2
Molecular weight
206.03

Names & synonyms

Dimethyl acid pyrophosphate26644-00-8Dimethyl dihydrogen diphosphateP,P'-Dimethyl diphosphateP,P'-Dimethyl pyrophosphateDTXSID2044632Cycate 296.9Pyrophosphoric acid dimethyl esterDiphosphoric acid, P,P'-dimethyl ester1R9ZEZ483SEINECS 247-871-5NSC 96609
Show more names
DIMETHYL PYROPHOSPHATEP1,P2-Dimethyl diphosphateDiphosphoric acid, P,P-dimethyl esterDimethyl acid pyrophosphate in isobutanolDiphosphoric acid dihydrogen α,β-dimethyl esterhydroxy(methoxy)phosphoryl]methylhydrogenphosphate
NSC-96609P,P'-Dimethyl dihydrogen diphosphatePyrophosphoric acid, P,P'-dimethyl esterAI3-15042DTXCID0024632RefChem:588242268-993-568155-93-126644-00-8

Database identifiers

CAS
26644-00-8、68155-93-1
PubChem CID
97004

Properties

Computed structural properties

XLogP
-2.1
Topological polar surface area
102 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
7
Rotatable bonds
4
Heavy atoms
11
Formal charge
0
Complexity
188

Experimental & physicochemical properties

Physical Description · 2 items

Dimethyl acid pyrophosphate appears as a liquid. Noncombustible. May severely irritate skin, eyes and mucous membranes. Avoid contact.

Liquid

Physicochemical properties

Boiling point
313.5 · 313.5±25.0 °C(Predicted)
Density
1.662 · 1.662±0.06 g/cm3(Predicted)
pka
0.77 · 0.77±0.50(Predicted)
FDA UNII
1 R9ZEZ483S · 1R9ZEZ483S
EPA Substance Registry System
P,P'-Dimethyl diphosphate (26644-00-8)
Symbol(GHS)
5 · GHS05
Signal word
Danger
Hazard statements
314 · H314
Precautionary statements
260 · P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
TSCA
TSCA listed

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 4.9% (6 of 123) of reports.

Danger

H301 (33.3%): Toxic if swallowed [Danger Acute toxicity, oral]

P260, P261, P264, P270, P272, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P333+P317, P362+P364, P363, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 123 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 2 items

Diphosphoric acid, P,P'-dimethyl ester is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Diphosphoric acid, P,P'-dimethyl ester are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Diphosphoric acid, P,P'-dimethyl ester: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

DOT LabelCorrosive
Fire HazardsExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
Health HazardsExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
Reactive GroupEsters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters
Reactivity Profile · 1 item

Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Chemistry & industry

Uses & manufacturing

U.S. Production2023: <25,000 lb
Consumer UsesSurfactant (surface active agent)
Industry UsesSurfactant (surface active agent)
General Manufacturing Information · 2 items

All Other Chemical Product and Preparation Manufacturing

Diphosphoric acid, P,P'-dimethyl ester: ACTIVE

Suppliers2 total

陕西缔都新材料有限公司81124267 17392282731 · [email protected]
DAYANG CHEM (HANGZHOU) CO.,LTD+86-88938639 +86-17705817739 · [email protected]

Related reactions

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Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
DTXSID
DTXSID2044632
ChEMBL
CHEMBL3186201
UNII
1R9ZEZ483S
EC Number
247-871-5
Nikkaji
J248.988K
Air and Water ReactionsAbout the same density as water and slowly dissolves in water.
Hazard Classes and CategoriesAcute Tox. 3 (33.3%)

Safety & protection

Fire FightingExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
First AidExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
Nonfire Spill ResponseExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
Isolation and EvacuationExcerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:
Personal Protective Equipment (PPE)Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

Safety data

tsca
TSCA listed
Signal word
Danger
Symbol(GHS)
GHS05
Hazard statements
H314
Precautionary statements
P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501