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CAS RN: 149-45-1 | Product Number: D0567

Tiron Monohydrate

Purity: >98.0%(T)
  • Catechol-3,5-disulfonic Acid Disodium Salt Monohydrate
  • Disodium 4,5-Dihydroxybenzene-1,3-disulfonate Monohydrate
  • Pyrocatechol-3,5-disulfonic Acid Disodium Salt Monohydrate
  • Tiferron Monohydrate
4   ≥20 
≥20  7  

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Product Number D0567
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__6H__4Na__2O__8S__2·H__2O = 332.21  
Physical State (20 deg.C) Solid
Condition to Avoid Hygroscopic
CAS RN 149-45-1
Related CAS RN 270573-71-2
Reaxys Registry Number 4629740
PubChem Substance ID 87567221
Merck Index (14) 9465
MDL Number


Appearance White to Almost white powder to crystal
Purity(Neutralization titration) min. 98.0 %
Solubility in Water almost transparency
Suitability for Titanium-analysis to pass test
Properties (reference)
Solubility in water Completely soluble
Solubility (slightly sol. in) Alcohol
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
EC Number 205-741-5
RTECS# CZ9263000
Transport Information:
HS Number 2908990090
Safety Data Sheet (SDS)
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