The melting point of Retinyl palmitate is very close to room temperature, about 25-30°C. However, melting point is not part of the Quality Control (QC) specifications for any of the Retinyl palmitate products listed.
The differences in purity testing for each is as follows:
Product R1512 is assayed for potency in USP units per gram, but not purity. The minimum activity is 1.7M units per gram.
Product R3375 is assayed for both potency in USP units per gram and purity by HPLC. The average activity is 1.8M units per gram. The minimum purity is 90%.
Product PHR1235 is a Certified Reference Material (CRM) that is traceable to the USP primary standard and assayed for both potency in USP units per gram and purity by HPLC. Values are reported on a lot specific basis as compared to the current USP primary standard 1602502.
R1512
Retinyl palmitate
potency: ≥1,700,000 USP units per g
Synonym(s):
Vitamin A palmitate, all−trans−Retinol palmitate
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
5 g | Check Cart for Availability | $77.70 |
About This Item
biological source
synthetic (organic)
Quality Segment
form
solid or viscous liquid
potency
≥1,700,000 USP units per g
does not contain
antioxidant
color
yellow to yellow-green
mp
26 °C
storage temp.
2-8°C
SMILES string
CC1=C(/C=C/C(C)=C/C=C/C(C)=C/COC(CCCCCCCCCCCCCCC)=O)C(C)(C)CCC1
InChI
1S/C36H60O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-25-35(37)38-30-28-32(3)23-20-22-31(2)26-27-34-33(4)24-21-29-36(34,5)6/h20,22-23,26-28H,7-19,21,24-25,29-30H2,1-6H3/b23-20+,27-26+,31-22+,32-28+
InChI key
VYGQUTWHTHXGQB-FFHKNEKCSA-N
General description
Application
Biochem/physiol Actions
Packaging
Physical form
1 of 1
This Item | |||
|---|---|---|---|
| description potency: ≥1,700,000 USP units per g | description Type IV, ~1,800,000 USP units/g, oil | description United States Pharmacopeia (USP) Reference Standard | description synthetic, matrix dispersion, 475,000-650,000 USP units/g |
| biological source synthetic (organic) | biological source synthetic (organic) | biological source - | biological source synthetic |
| form solid or viscous liquid | form oil | form - | form matrix dispersion |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. −20°C |
| mp 26 °C | mp 26 °C | mp - | mp 57-58 °C |
| color yellow to yellow-green | color yellow to orange | color - | color yellow |
| Quality Level 200 | Quality Level 100 | Quality Level - | Quality Level 200 |
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3 - Repr. 1B
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 2
Flash Point (°F)
No data available
Flash Point (°C)
No data available
PPE (personal protective equipment)
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
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What is the difference in purity and melting point among Retinyl palmitate PHR1235, R3375 and R1512?
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