murphySodium Ascorbyl Phosphate
AKA: 66170-10-3, Sodium L-Ascorbyl-2-Phosphate, Sodium ascorbyl monophosphate, Trisodium ascorbate-2-phosphate, L-Ascorbic acid, 2-monophosphate, Trisodium salt
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Synthetic
Antioxidant
Clean
OriginDerived from L-ascorbic acid (vitamin C) sourced from fermented plant materials like corn or cassava. Synthesized through phosphorylation of ascorbic acid, then stabilized by converting to its sodium salt form.
L-Ascorbic acid, 2-(dihydrogen phosphate), trisodium salt
Formula
C6H6Na3O9P
Mol. Weight
322.05
CAS #
66170-10-3
Form
Powder
Skin Types
●all-skin-types
Best For
Dullness
Pregnancy & Breastfeeding Safe
Yes
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Neutralizes Free Radicals
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Eye Irritant in Testing
1 study / 1 irritating (CIR 933)
Skin Irritant in Testing
2 studies / 2 irritating / reactions weak (CIR 933)
Mixed Sensitization Results
1 study / 1 mixed (CIR 933)
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR