Book a demo

Chemical intelligence powered by cypris.ai

Tachysterol3

(1S)-3-[(E)-2-[(1R,3aR,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-4-methylcyclohex-3-en-1-ol · also: tacalciol, Tachysterol 3, (6E)-tacalciol, Cholecalciferol Impurity E, Cholecalciferol EP Impurity E, (3b,6E)-9,10-Secocholesta-5(10),6,8-trien-3-ol

FormulaC27H44O
Mol. weight384.648
PubChem CID5283713
InChIKeyYUGCAAVRZWBXEQ-FMCTZRJNSA-N
SMILESCC1=C(C[C@H](CC1)O)/C=C/C2=CCC[C@]3([C@H]2CC[C@@H]3[C@H](C)CCCC(C)C)C
113Patents
55Research papers
3Patents - last 3 years
0Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#AssigneePatents
1Ono Pharmaceutical Co Ltd17
2Duphar International Research BV14
3Abbott Products Operations AG3
4Boston University3
5University of California, San Diego3
6Vyne Therapeutics Inc3
7Yarrow Bioscience Inc3
8Bayer Pharma AG2
9F Hoffmann La Roche AG2
10Journey Medical Corp2

Explore the full landscape

This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

Visit Cypris

Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#CodeAreaPatents
1A61KMedicinal preparations67
2A61PTherapeutic activity (drug indications)53
3C07DHeterocyclic compounds33
4C07CAcyclic and carbocyclic compounds28
5C07BGeneral methods of organic chemistry21
6A61QCosmetics, personal care15
7C07J10
8C07KPeptides8
9A23LFoods and beverages (general)6
10C08FPolymers from C=C unsaturated bonds6

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

See Cypris in action

Where research is gaining momentum

Research themes ranked by publication activity show where scientific interest is accelerating around this compound.

#Research topicPapers
1Vitamin D Research Studies3

Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#AuthorAffiliationPapers
1Michael F. HolickMassachusetts General Hospital19
2Atsushi KittakaTeikyo University5
3Daisuke SawadaTeikyo University5
4Tai C. ChenBoston University5
5Xiao Quan TianBoston Medical Center5
6Hiroshi SaitoTeijin (Japan)4
7Kazuya TakenouchiTeijin (Japan)4
8Yuya TsukudaTeikyo University4
9Eiji OchiaiTeijin (Japan)3
10Eva M. CodesidoUniversidade de Santiago de Compostela3

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

See Cypris in action

The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the molecular composition of Tachysterol3?

Tachysterol3 has the molecular formula C27H44O with a molecular weight of 384.648. Its canonical IUPAC name is (1S)-3-[(E)-2-[(1R,3aR,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-4-methylcyclohex-3-en-1-ol, and it is also known by several other systematic names including (6E)-(3S)-9,10-seco-5(10),6,8-cholestatrien-3-ol.

Which organizations hold the most patents involving Tachysterol3?

Ono Pharmaceutical Co Ltd holds the largest patent portfolio related to Tachysterol3 with 17 patents, followed by Duphar International Research BV with 14 patents. Several other pharmaceutical and biotechnology organizations including Abbott Products Operations AG, Bayer Pharma AG, and F Hoffmann La Roche AG also maintain patent portfolios in this area.

What are the primary regulatory classifications associated with patents covering Tachysterol3?

The most prevalent CPC patent classifications are A61K (pharmaceutical preparations) with 67 patents, A61P (specific therapeutic applications) with 53 patents, and C07D (heterocyclic compounds) with 33 patents. These reflect the compound's use in pharmaceutical development and its role as a vitamin D-related molecule.

Who are the leading researchers publishing on Tachysterol3-related topics?

Michael F. Holick from Massachusetts General Hospital is the most prolific author with 19 papers in this area. Additional prominent researchers include Atsushi Kittaka and Daisuke Sawada from Teikyo University, as well as Tai C. Chen from Boston University and Xiao Quan Tian from Boston Medical Center, each with 5 papers.

What research areas are covered in the published literature on Tachysterol3?

The published literature covers Vitamin D Research Studies as a primary topic. Notable papers include foundational works on the photosynthesis of previtamin D3 in human skin, the effects of sunscreens on vitamin D3 synthesis, and the spectral characteristics of sunlight in relation to previtamin D3 photosynthesis, with some papers also addressing circadian rhythm and dermatological applications.

Turn any compound into a complete chemical intelligence landscape

Go beyond static compound data. Cypris resolves identities, patents, papers, and commercial signals into one AI-powered view - so your team can move from a single chemical question to a complete R&D, IP, and market landscape.

Schedule a free trial