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Substance Name: Phosphocysteamine sodium
RN: 3724-89-8
UNII: YC9U0409D3
InChIKey: VZEGNYNPDZDIRW-UHFFFAOYSA-M

Note

  • Proposed as an adjuvant to cancer chemotherapy; may have radiation protective properties.

Classification Codes

  • Protective Agents
  • Radiation-Protective Agents

Molecular Formula

  • C2-H8-N-O3-P-S.Na

Molecular Weight

  • 179.1113
 
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Names and Synonyms

Name of Substance

  • Cystaphos
  • Phosphocysteamine sodium

MeSH Heading

  • Cystaphos

Synonyms

  • Cistaphos
  • Cystafos
  • Cystaphos
  • Cystaphos sodium salt
  • EINECS 223-079-5
  • Ethanethiol, 2-amino-, dihydrogen phosphate(ester), monosodium salt
  • Ethanethiol, 2-amino-, dihydrogen phosphate, monosodium salt
  • Monosodium beta-aminoethyl thiophosphate
  • NSC 87174
  • S-(2-Aminoethyl) thiophosphate monosodium salt
  • S-(2-Aminoethyl)thiophosphate monosodium salt
  • Sodium beta-aminoethyl thiophosphate
  • Sodium hydrogen S-(2-aminoethyl) phosphorothioic acid
  • Sodium hydrogen S-(2-aminoethyl)phosphorothioate
  • Sodium hydrogen S-(2-aminoethyl)phosphorothioic acid
  • Tsistafos
  • Tsistafos (cystafos)
  • UNII-YC9U0409D3
  • WR 638

Systematic Names

  • Ethanethiol, 2-amino-, dihydrogen phosphate (ester), monosodium salt
  • Phosphorothioic acid, S-(2-aminoethyl) ester, monosodium salt
  • Sodium hydrogen -S-(2-aminoethyl)thiophosphate

Registry Numbers

CAS Registry Number

  • 3724-89-8

FDA UNII

  • YC9U0409D3

System Generated Number

  • 0003724898

Molecular Formulas

Molecular Formula

  • C2-H8-N-O3-P-S.Na

Molecular Formula Fragments

  • C2-H8-N-O3-P-S
  • COMPONENT
  • Na

Structure Descriptors

InChI

1S/C2H8NO3PS.Na/c3-1-2-8-7(4,5)6;/h1-3H2,(H2,4,5,6);/q;+1/p-1

InChIKey

VZEGNYNPDZDIRW-UHFFFAOYSA-M

Smiles

[Na+].NCCSP(=O)(O)[O-]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 intraperitoneal 358mg/kg (358mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Radiobiologiya. Vol. 16, Pg. 249, 1976.
mouse LD50 intramuscular 1003mg/kg (1003mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: TREMOR
Radiobiologiya. Vol. 16, Pg. 249, 1976.
mouse LD50 intraperitoneal 806mg/kg (806mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Radiobiologiya. Vol. 16, Pg. 249, 1976.
mouse LD50 oral 1433mg/kg (1433mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Radiobiologiya. Vol. 16, Pg. 249, 1976.
rat LD50 intramuscular 505mg/kg (505mg/kg) BEHAVIORAL: TREMOR

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Radiobiologiya. Vol. 16, Pg. 249, 1976.
rat LD50 intraperitoneal 555mg/kg (555mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: TREMOR
Radiobiologiya. Vol. 16, Pg. 249, 1976.