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CAS RN: 3147-14-6 | Product Number: C0008

Calmagite [Metal indicator for Ca, Mg etc.]

  • 1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic Acid
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Product Number C0008
Molecular Formula / Molecular Weight C__1__7H__1__4N__2O__5S = 358.37  
Physical State (20 deg.C) Solid
CAS RN 3147-14-6
Reaxys Registry Number 708596
PubChem Substance ID 87565219
SDBS (AIST Spectral DB) 2578
Merck Index (14) 1718
MDL Number


Appearance Red to Dark blue to Black powder to crystal
Sensitiveness Turn Red with Calcium carbonate and turn Blue by adding EDTA 2Na
Properties (reference)
Melting Point 330 °C
Maximum Absorption Wavelength 526(H2O) nm
Solubility in water Soluble
Solubility (soluble in) Acetone,Ethanol
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: / Compliance with laws, Regulations
Enzyme Commission 221-563-0
Transport Information:
HS Number 2927000090
PubMed Literature

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