Zinc picolinate

Identifiers

CAS Number

* 17949-65-4

3D model (JSmol)

* Interactive image

ChemSpider |

* 8080400

PubChem CID

* 9904746

UNII |

* ALO92O31SE

InChI

* InChI=1S/2C6H5NO2.Zn/c2*8-6(9)5-3-1-2-4-7-5;/h2*1-4H,(H,8,9);/q;;+2/p-2

Key: NHVUUBRKFZWXRN-UHFFFAOYSA-L

SMILES

* C1=CC=NC(=C1)C(=O)[O-].C1=CC=NC(=C1)C(=O)[O-].[Zn+2]

Properties

Chemical formula

| C12H12N2O6Zn
Molar mass | 345.62 g·mol−1
Hazards
GHS pictograms |
GHS Signal word | Warning

GHS hazard statements

| H302, H315, H319, H335, H410

GHS precautionary statements

| P261, P264, P270, P271, P273, P280, P301+312, P302+352, P304+340, P305+351+338, P312, P321, P330, P332+313, P337+313, P362, P391, P403+233, P405, P501

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Tracking categories (test):

* SizeSet

Zinc picolinate (or ZnPic) is the zinc coordination complex derived from picolinic acid and zinc(II). It has the formula Zn(NC

4CO

2(H
2O)
2. The complex adopts an octahedral molecular geometry, containing two bidentate picolinate ligands (conjugate base of picolinic acid) and two aquo ligands. Additionally, two water of crystallization are present, thus the compound crystallizes with the formula Zn(NC

4CO

2(H
2O)
2 * 2H2O.[1] It is a colorless solid.

## Related compounds

Other zinc(II) complexes of picolinic acid have been described.[2] Isostructural with the zinc complex are M(NC

4CO

2(H
2O)
2 * 2H2O (M = Co and Ni).[3]

## Dietary supplement

Zinc picolinate has been used as a dietary zinc supplement.[4][5][6]

## References

1. ↑ Lumme, Paavo; Lundgren, Georg; Mark, Wanda; Lundström, Hans; Borch, Gunner; Craig, J. Cymerman (1969). "The Crystal Structure of Zinc Picolinate Tetrahydrate, Zn(C6H4O2N)2(H2O)4". Acta Chemica Scandinavica 23: 3011–3022. doi:10.3891/acta.chem.scand.23-3011.
2. ↑ Vargová, Zuzana; Zeleòák, Vladimı́r; Cı́Saøová, Ivana; Györyová, Katarı́na (2004). "Correlation of Thermal and Spectral Properties of Zinc(II) Complexes of Pyridinecarboxylic Acids with Their Crystal Sructures". Thermochimica Acta 423 (1–2): 149–157. doi:10.1016/j.tca.2004.03.016.
3. ↑ Tella, Adedibu C.; Oladipo, Adetola C.; Adeyemi, Olalere G.; Oluwafemi, Oluwatobi S.; Oguntoye, Stephen O.; Alimi, Lukman O.; Ajayi, Joseph T.; Degni, Sylvestre K. (2017). "Solid State Synthesis, Spectroscopic and X-Ray Studies of Metal Complexes of 2-Picolinic Acid and Vapochromic Behavior of [Co(Pic)2(H2O)2 ]·2H2O". Solid State Sciences 68: 1–9. doi:10.1016/j.solidstatesciences.2017.03.017.
4. ↑ "Zinc: Health Effects and Research Priorities for the 1990s". Environmental Health Perspectives 102 (Suppl 2): 5–46. June 1994. doi:10.1289/ehp.941025. PMID 7925188.
5. ↑ "Double-Blind, Placebo-Controlled Trial of Zinc Picolinate for Taste Disorders". Acta Oto-Laryngologica. Supplementum 122 (546): 129–33. 2002. doi:10.1080/00016480260046517. PMID 12132610.
6. ↑ "Comparative Absorption of Zinc Picolinate, Zinc Citrate and Zinc Gluconate in Humans". Agents and Actions 21 (1–2): 223–8. June 1987. doi:10.1007/BF01974946. PMID 3630857.

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Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:Zinc_picolinate&oldid=4027184"
*[CID]: Compound ID
*[H302]: Harmful if swallowed
*[H315]: Causes skin irritation
*[H319]: Causes serious eye irritation
*[H335]: May cause respiratory irritation
*[H410]: Very toxic to aquatic life with long lasting effects
*[P261]: Avoid breathing dust/fume/gas/mist/vapours/spray
*[P264]: Wash … thoroughly after handling
*[P270]: Do not eat, drink or smoke when using this product
*[P271]: Use only outdoors or in a well-ventilated area
*[P273]: Avoid release to the environment
*[P280]: Wear protective gloves/protective clothing/eye protection/face protection
*[P301+312]: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
*[P302+352]: IF ON SKIN: Wash with soap and water
*[P304+340]: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
*[P305+351+338]: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing
*[P312]: Call a POISON CENTER or doctor/physician if you feel unwell
*[P321]: Specific treatment (see … on this label)
*[P330]: Rinse mouth
*[P332+313]: If skin irritation occurs: Get medical advice/attention
*[P337+313]: Get medical advice/attention
*[P362]: Take off contaminated clothing and wash before reuse
*[P391]: Collect spillage
*[P403+233]: Store in a well ventilated place. Keep container tightly closed
*[P405]: Store locked up
*[P501]: Dispose of contents/container to …