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Substance Name: Sodium pyrophosphate [USAN]
RN: 7722-88-5
UNII: O352864B8Z
InChIKey: FQENQNTWSFEDLI-UHFFFAOYSA-J

Molecular Formulas

  • H4-O7-P2.4Na
  • Na4-P2-O7
  • O7-P2.4Na

Molecular Weight

  • 265.901
 

Classification Codes

Classification Codes

  • Drug / Therapeutic Agent
  • Pharmaceutic Aid

Superlist Classification Code

  • TWA 5 mg/m3

Names and Synonyms

Name of Substance

  • Diphosphoric acid, tetrasodium salt
  • Sodium pyrophosphate
  • Sodium pyrophosphate [USAN]
  • Tetrasodium pyrophosphate
  • TSPP

Synonyms

  • Anhydrous tetrasodium pyrophosphate
  • Caswell No. 847
  • Diphosphoric acid, tetrasodium salt
  • EC 231-767-1
  • EINECS 231-767-1
  • EPA Pesticide Chemical Code 076405
  • HSDB 854
  • Natrium pyrophosphat
  • Natrium pyrophosphat [German]
  • NSC 56751
  • Phosphotex
  • Pyrophosphoric acid tetrasodium salt
  • Sodium diphosphate (Na4P2O7)
  • Sodium diphosphate, anhydrous
  • Sodium phosphate (Na4P2O7)
  • Sodium pyrophosphate
  • Sodium pyrophosphate (Na4P2O7)
  • Sodium pyrophosphate, tetrabasic
  • Tetranatriumpyrophosphat
  • Tetranatriumpyrophosphat [German]
  • Tetrasodium diphosphate
  • Tetrasodium pyrophosphate
  • Tetrasodium pyrophosphate, anhydrous
  • TSPP
  • UNII-O352864B8Z
  • Victor TSPP

Systematic Names

  • Diphosphoric acid, sodium salt (1:4)
  • Diphosphoric acid, tetrasodium salt
  • Pyrophosphoric acid, tetrasodium salt
  • Tetrasodium pyrophosphate

Superlist Names

  • Diphosphoric acid, tetrasodium salt
  • Tetrasodium pyrophosphate
  • Tetrasodium pyrophosphate, anhydride

Registry Numbers

CAS Registry Number

  • 7722-88-5

FDA UNII

  • O352864B8Z

Other Registry Numbers

  • 1269628-79-6
  • 156460-73-0
  • 93269-17-1

Related Registry Numbers

  • 10042-91-8 (unspecified hydrochloride salt)
  • 13472-36-1 (tetra-hydrochloride salt decahydrate)
  • 14691-80-6 (tri-hydrochloride salt)
  • 7758-16-9 (di-hydrochloride salt)

System Generated Number

  • 0007722885

Molecular Formulas

Molecular Formulas

  • H4-O7-P2.4Na
  • Na4-P2-O7
  • O7-P2.4Na

Molecular Formula Fragments

  • COMPONENT
  • H4-O7-P2
  • Na
  • O7-P2

Structure Descriptors

InChI

1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)/q4*+1;/p-4

InChIKey

FQENQNTWSFEDLI-UHFFFAOYSA-J

Smiles

P(OP(=O)([O-])[O-])(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intravenous 69mg/kg (69mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
mouse LD50 oral 2980mg/kg (2980mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
mouse LD50 subcutaneous 400mg/kg (400mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
rabbit LD skin > 300mg/kg (300mg/kg)   Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 1, Pg. 47, 1990.
rat LD50 intraperitoneal 59mg/kg (59mg/kg) BEHAVIORAL: EXCITEMENT Journal of Pharmacology and Experimental Therapeutics. Vol. 108, Pg. 117, 1953.
rat LD50 intravenous 100mg/kg (100mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 172, 1957.
rat LD50 oral 4gm/kg (4000mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 172, 1957.