MedKoo Cat#: 414566 | Name: Homatropine Free Base

Description:

WARNING: This product is for research use only, not for human or veterinary use.

Homatropine Free Base is an anticholinergic medication that is an antagonist at muscarinic acetylcholine receptors and thus the parasympathetic nervous system. It is used in eye drops as a cycloplegic, and as a mydriatic. The related chemical compound homatropine methylbromide is a different medication.

Chemical Structure

Homatropine Free Base
Homatropine Free Base
CAS# 87-00-3 (free base)

Theoretical Analysis

MedKoo Cat#: 414566

Name: Homatropine Free Base

CAS#: 87-00-3 (free base)

Chemical Formula: C16H21NO3

Exact Mass: 275.1521

Molecular Weight: 275.35

Elemental Analysis: C, 69.79; H, 7.69; N, 5.09; O, 17.43

Price and Availability

This product is currently not in stock but may be available through custom synthesis. To ensure cost efficiency, the minimum order quantity is 1 gram. The estimated lead time is 2 to 4 months, with pricing dependent on the complexity of the synthesis (typically high for intricate chemistries). Quotes for quantities below 1 gram will not be provided. To request a quote, please click the button below. Note: If this product becomes available in stock in the future, pricing will be listed accordingly.
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Related CAS #
87-00-3 (free base); 51-56-9 (HBr)
Synonym
Homatropine Free Base; BRN0087959; BRN-0087959; BRN 0087959
IUPAC/Chemical Name
(1R,3r,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl 2-hydroxy-2-phenylacetate
InChi Key
ZTVIKZXZYLEVOL-MCOXGKPRSA-N
InChi Code
InChI=1S/C16H21NO3/c1-17-12-7-8-13(17)10-14(9-12)20-16(19)15(18)11-5-3-2-4-6-11/h2-6,12-15,18H,7-10H2,1H3/t12-,13+,14+,15?
SMILES Code
CN1[C@@H]2CC[C@H]1C[C@@H](OC(C(c3ccccc3)O)=O)C2
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
To be determined
Shelf Life
>2 years if stored properly
Drug Formulation
To be determined
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 275.35 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1: Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006–. Homatropine. 2021 Apr 19. PMID: 30000723. 2: Sander BP, Collins MJ, Read SA. The interaction between homatropine and optical blur on choroidal thickness. Ophthalmic Physiol Opt. 2018 May;38(3):257-265. doi: 10.1111/opo.12450. PMID: 29691923. 3: Shah BM, Sharma P, Menon V, Saxena R, Singh JP. Comparing homatropine and atropine in pediatric cycloplegic refractions. J AAPOS. 2011 Jun;15(3):245-50. doi: 10.1016/j.jaapos.2010.12.020. PMID: 21777797. 4: Jinagal J, Gupta PC, Pilania RK, Ram J. Systemic toxicity of topical corticosteroids. Indian J Ophthalmol. 2019 Apr;67(4):559-561. doi: 10.4103/ijo.IJO_1091_18. PMID: 30900600; PMCID: PMC6446646. 5: Joshaghani M, Nazari H, Ghasemi Falavarjani K, Shokrollahi S, Jafar Ghaempanah M, Abri Aghdam K, Mirbolouk Jalali Z. Effect of Homatropine eye drops on pain after photorefractive keratectomy: A pilot study. Saudi J Ophthalmol. 2013 Apr;27(2):83-5. doi: 10.1016/j.sjopt.2012.07.003. Epub 2012 Jul 31. PMID: 24227967; PMCID: PMC3809471. 6: Reilly KM, Chan L, Mehta NJ, Salluzzo RF. Systemic toxicity from ocular homatropine. Acad Emerg Med. 1996 Sep;3(9):868-71. doi: 10.1111/j.1553-2712.1996.tb03533.x. PMID: 8870760. 7: Bhatia J. Effect of tropicamide and homatropine eye drops on a-scan parameters of the phakic normal eyes. Oman Med J. 2011 Jan;26(1):23-5. doi: 10.5001/omj.2011.06. PMID: 22043374; PMCID: PMC3191618. 8: Bryant SM, Wills BK, Rhee JW, Aks SE, Maloney G. Intramuscular ophthalmic homatropine vs. atropine to prevent lethality in rates with dichlorvos poisoning. J Med Toxicol. 2006 Dec;2(4):156-9. doi: 10.1007/BF03161184. PMID: 18072136; PMCID: PMC3550072. 9: Whelan NC, Castillo-Alcala F, Lizarraga I. Efficacy of tropicamide, homatropine, cyclopentolate, atropine and hyoscine as mydriatics in Angora goats. N Z Vet J. 2011 Nov;59(6):328-31. doi: 10.1080/00480169.2011.609476. PMID: 22040340. 10: Fanciullacci M, Cangi F, Gatto G, Boccuni M, Pietrini U. Morphine eye-drops reduce homatropine induced mydriasis in man. Experientia. 1984 Jul 15;40(7):731-3. doi: 10.1007/BF01949747. PMID: 6547680.