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Chemistry

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Also known as: Lr-103, 156316-85-7, 2900i92z36, (24s)-1alpha,24-dihydroxyvitamin d2 / (24s)-1alpha,24-dihydroxyergocalciferol, (5z,7e,22e)-(1s,3r,24s)-9,10-seco-5,7,10(19),22-ergostatetraene-1,3,24-triol, Unii-2900i92z36
Molecular Formula
C28H44O3
Molecular Weight
428.6  g/mol
InChI Key
ODZFJAXAEXQSKL-WRJREGAQSA-N
FDA UNII
2900I92Z36

Lr-103
LR-103 is a naturally occurring D-hormone that is produced by the kidneys from vitamin D. LR-103 is one of the D-hormones produced from Hectorol. It is developed for the treatment of secondary hyperparathyroidism in patients with chronic kidney disease (CKD). Studies have shown LR-103 has the same potency as calcitriol, but much lower toxicity.
1 2D Structure

Lr-103

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5S)-5-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol
2.1.2 InChI
InChI=1S/C28H44O3/c1-18(2)28(6,31)15-13-19(3)24-11-12-25-21(8-7-14-27(24,25)5)9-10-22-16-23(29)17-26(30)20(22)4/h9-10,13,15,18-19,23-26,29-31H,4,7-8,11-12,14,16-17H2,1-3,5-6H3/b15-13+,21-9+,22-10-/t19-,23-,24-,25+,26+,27-,28-/m1/s1
2.1.3 InChI Key
ODZFJAXAEXQSKL-WRJREGAQSA-N
2.1.4 Canonical SMILES
CC(C)C(C)(C=CC(C)C1CCC2C1(CCCC2=CC=C3CC(CC(C3=C)O)O)C)O
2.1.5 Isomeric SMILES
C[C@H](/C=C/[C@](C)(C(C)C)O)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C/3\C[C@H](C[C@@H](C3=C)O)O)C
2.2 Other Identifiers
2.2.1 UNII
2900I92Z36
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 1,24(s)-dihydroxyvitamin D2

2. 1,24-dihydroxyvitamin D2

3. 1alpha,24(s)(oh)2d2

4. 1alpha,24(s)-dihydroxyvitamin D2

5. Lr-103

2.3.2 Depositor-Supplied Synonyms

1. Lr-103

2. 156316-85-7

3. 2900i92z36

4. (24s)-1alpha,24-dihydroxyvitamin D2 / (24s)-1alpha,24-dihydroxyergocalciferol

5. (5z,7e,22e)-(1s,3r,24s)-9,10-seco-5,7,10(19),22-ergostatetraene-1,3,24-triol

6. Unii-2900i92z36

7. Lmst03010062

8. 1alpha,24(s)-dihydroxyergocalciferol

9. Schembl3026089

10. Lr 103 [who-dd]

11. Dtxsid801015488

12. Zinc4791507

13. Db06117

14. (1alpha,3beta,5z,7e,22e,24s)-9,10-secoergosta-5,7,10(19),22-tetraene-1,3,24-triol

15. 1.alpha.,24s-dihydroxyvitamin D2

16. 1.alpha.,24(s)-dihydroxyergocalciferol

17. Q27254357

18. (1.alpha.,3.beta.,5z,7e,22e,24s)-9,10-secoergosta-5,7,10(19),22-tetraene-1,3,24-triol

19. 9,10-secoergosta-5,7,10(19),22-tetraene-1,3,24-triol,(1.alpha.,3.beta.,5z,7e,22e)-

2.4 Create Date
2006-08-30
3 Chemical and Physical Properties
Molecular Weight 428.6 g/mol
Molecular Formula C28H44O3
XLogP35.1
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count3
Rotatable Bond Count5
Exact Mass428.32904526 g/mol
Monoisotopic Mass428.32904526 g/mol
Topological Polar Surface Area60.7 Ų
Heavy Atom Count31
Formal Charge0
Complexity760
Isotope Atom Count0
Defined Atom Stereocenter Count7
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count3
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Indication

Investigated for use/treatment in parathyroid disorders.


5 Pharmacology and Biochemistry
5.1 Pharmacology

LR-103 is effective in normalizing serum calcium and PTH levels without causing hypercalcemia. Importantly, LR-103 also normalized bone abnormalities consequent to SHPT and active vitamin D deficiency.


ABOUT THIS PAGE

Lr-103 Manufacturers

A Lr-103 manufacturer is defined as any person or entity involved in the manufacture, preparation, processing, compounding or propagation of Lr-103, including repackagers and relabelers. The FDA regulates Lr-103 manufacturers to ensure that their products comply with relevant laws and regulations and are safe and effective to use. Lr-103 API Manufacturers are required to adhere to Good Manufacturing Practices (GMP) to ensure that their products are consistently manufactured to meet established quality criteria.

Lr-103 Suppliers

A Lr-103 supplier is an individual or a company that provides Lr-103 active pharmaceutical ingredient (API) or Lr-103 finished formulations upon request. The Lr-103 suppliers may include Lr-103 API manufacturers, exporters, distributors and traders.

click here to find a list of Lr-103 suppliers with USDMF, JDMF, KDMF, CEP, GMP, COA and API Price related information on PharmaCompass.

Lr-103 USDMF

A Lr-103 DMF (Drug Master File) is a document detailing the whole manufacturing process of Lr-103 active pharmaceutical ingredient (API) in detail. Different forms of Lr-103 DMFs exist exist since differing nations have different regulations, such as Lr-103 USDMF, ASMF (EDMF), JDMF, CDMF, etc.

A Lr-103 DMF submitted to regulatory agencies in the US is known as a USDMF. Lr-103 USDMF includes data on Lr-103's chemical properties, information on the facilities and procedures used, and details about packaging and storage. The Lr-103 USDMF is kept confidential to protect the manufacturer’s intellectual property.

click here to find a list of Lr-103 suppliers with USDMF on PharmaCompass.

Lr-103 GMP

Lr-103 Active pharmaceutical ingredient (API) is produced in GMP-certified manufacturing facility.

GMP stands for Good Manufacturing Practices, which is a system used in the pharmaceutical industry to make sure that goods are regularly produced and monitored in accordance with quality standards. The FDA’s current Good Manufacturing Practices requirements are referred to as cGMP or current GMP which indicates that the company follows the most recent GMP specifications. The World Health Organization (WHO) has its own set of GMP guidelines, called the WHO GMP. Different countries can also set their own guidelines for GMP like China (Chinese GMP) or the EU (EU GMP).

PharmaCompass offers a list of Lr-103 GMP manufacturers, exporters & distributors, which can be sorted by USDMF, JDMF, KDMF, CEP (COS), WC, API price, and more, enabling you to easily find the right Lr-103 GMP manufacturer or Lr-103 GMP API supplier for your needs.

Lr-103 CoA

A Lr-103 CoA (Certificate of Analysis) is a formal document that attests to Lr-103's compliance with Lr-103 specifications and serves as a tool for batch-level quality control.

Lr-103 CoA mostly includes findings from lab analyses of a specific batch. For each Lr-103 CoA document that a company creates, the USFDA specifies specific requirements, such as supplier information, material identification, transportation data, evidence of conformity and signature data.

Lr-103 may be tested according to a variety of international standards, such as European Pharmacopoeia (Lr-103 EP), Lr-103 JP (Japanese Pharmacopeia) and the US Pharmacopoeia (Lr-103 USP).

Inform the supplier about your product requirements, specifying if you need a product with particular monograph like EP (Ph. Eur.), USP, JP, BP, or any other quality. In addition, clarify whether you need hydrochloride (HCl), anhydricum, base, micronisatum or a specific level of purity. To find reputable suppliers, utilize the filters and select those certified by GMP, FDA, or any other certification as per your requirement.
For your convenience, we have listed synonyms and CAS numbers to help you find the best supplier. The use of synonyms and CAS numbers can be helpful in identifying potential suppliers, but it is crucial to note that they might not always indicate the exact same product. It is important to confirm the product details with the supplier before making a purchase to ensure that it meets your requirements.
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