 Home > Encyclopedia > Urolithin B

Urolithin B

Urolithin B structure

CAS No:
1139-83-9
Formula:
C13H8O3
Chemical Name:
Urolithin B
Synonyms:
6H-Dibenzo[b,d]pyran-6-one,3-hydroxy-;2-Biphenylcarboxylic acid,2′,4′-dihydroxy-,δ-lactone;3-Hydroxy-6H-dibenzo[b,d]pyran-6-one;7-Hydroxy-3,4-benzocoumarin;Urolithin B;NSC 94726;3-Hydroxydibenzo-α-pyrone;3-Hydroxyurolithin;3-Hydroxy-6H-benzo[c]chromen-6-one;3-Hydroxybenzo[c]chromen-6-one;3-Hydroxy-6H-benzo[c]chromene-6-one
Categories:
Pharmaceutical Intermediates > Bulk Drug Intermediates

Request for Quotation

Description

Solid

Urolithin B is a member of coumarins.

Urolithin B Basic Attributes

Molecular Weight：

212.2

Exact Mass：

212.20

UNII：

B1S2YM5F6G

NSC Number：

94726

DSSTox ID：

DTXSID00150610

HScode：

2914400090

Characteristics

PSA：

46.5

XLogP3：

2.7

Appearance：

Solid

Density：

1.395±0.06 g/cm3(Predicted)

Melting Point：

247 °C

Boiling Point：

432.6±24.0 °C(Predicted)

Flash Point：

196.6ºC

Refractive Index：

1.679

Water Solubility：

DMSO: soluble 5mg/mL, clear (warmed)

Vapor Pressure：

4.34E-08mmHg at 25°C

Safety Information

Hazard category：

IRRITANT

wgk germany：

Marks：

GHS Classification：

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P301+P312, P330, and P501|Aggregated GHS information provided by 39 companies from 2 notifications to the ECHA C&L Inventory.

Drug Information

MeSH Entry Terms：

urolithin B

Urolithin B Use and Manufacturing

General procedure: A solution of methyl ether of urolithins A–C 30a–c (1.0equiv) was cooled at 0°C under Ar atmosphere and was added BBrAnhydrous AlClA solution of the 2-bromobenzoic acid (0.05 mol), resorcinol(0.1 mol), and sodium hydroxide (0.1 mol) in water (30 mL) washeated under reflux for 30 min. A 10percent aqueous solution of copper sulfate (5 mL) was then added where upon a slightly exothermic reaction ensued. The resulting mixture was heated under reflux for an additional 10 min and then cooled to 20 °C. The insoluble product was collected, washed well with water and dried. This material was of sufficient purity to be used as such for the preparations of the 3-hydroxy-6H-benzo[c]chromen-6-one, Yield: 66.3percent; mp: 230-231 °C (lit [31] 234-236 °C).Example 3Preparation of Urolithin B Urolithin B was prepared in one step by coupling resorcinol and 2-bromobenzoic acid following the procedure for the preparation of Urolithin A. The pure compound was obtained as a off-white powder with a yield of 61.6percent.3-hydroxy-6H-benzo[c]chromen-6-one A mixture of 2-lodobenzoic acid (30 gram, 0.12 mol), resorcinol (40 gram, 0.36 mol), and NaOH (17.4 g, 0.44 mol) in water (150 mL) is heated under reflux for 30 min. After the addition of aqueous CuS0A mixture of 2-iodobenzoic acid (30 g, 0.12 mol), resorcinol(40 g, 0.36 mol), and NaOH (17.4 g, 0.44 mol) in water (150 mL)was heated under reflux for 30 min. After the addition of aqueousCuSO4 (28percent, 25 mL) the mixture was refluxed for additional10 min, during which time the product (0.62 g) precipitated as awhite powder. The precipitate was filtered and washed with coldwater. Yield obtained: 80.1percent, 1H NMR (DMSO-d6) d 6.71 (d, 1H), 6.80 (dd, 1H, Ar-H), 7.51 (t, 1H, Ar-H), 7.83 (t, 1H, Ar-H), 8.08–8.22 (m, 3H, Ar-H), 10.32 (s, 1H, AOAH).A mixture of 2-iodobenzoic acid (6 mmol), resorcinol(18 mmol), and NaOH solution (22 mmol) in water (20 mL)was refluxed for 1 h. After the addition of aqueous CuSO4(15percent, 10 mL) to the mixture, refluxing was continued foradditional 10 min. The product was filtered, and washed withice-water and obtained as a white powder. 1H NMR (DMSOd6, 400 MHz): δ = 10.30 (s, 1H, OH), 8.15–8.12 (m, 3H), 7.86–7.83 (m, 1H), 7.50 (s, 1H), 6.77–6.74 (m, 2H). 13CNMR (DMSO-d6, 125 MHz) δ (ppm) major rotamer:160.5 ppm for lactone carbonyl. Yield obtained: 76percent.A mixture of 2-iodobenzoic acid (120 mmol), resorcinol(360 mmol), and NaOH solution (440 mmol) in water(50 mL) was refluxed for 1 h. After the addition of aqueousCuSO4 (28percent, 25 mL) to the mixture, refluxing was continuedfor 10 min. The product was filtered, and washed withice-water and obtained as a white powder. Yield obtained:72percent. 1H NMR (DMSO-d6, 400 MHz): δ = 10.30 (s, 1H, OH), 8.17 (m, 3H, Ar-H), 7.87 (t, 1H, Ar-H), 7.50 (t, 1H, Ar-H), 6.76 (m, 2H, Ar-H).

Computed Properties

Molecular Weight:212.20
XLogP3:2.7
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Exact Mass:212.047344113
Monoisotopic Mass:212.047344113
Topological Polar Surface Area:46.5
Heavy Atom Count:16
Complexity:289
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Recommended Suppliers of Urolithin B

HANGZHOU LEAP CHEM CO., LTD. Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals,Biochemicals,Pharmaceuticals,Screening Compounds,Food Additives

3-HYDROXY-6H-DIBENZO[B,D]PYRAN-6-ONE

CAS No.: 1139-83-9

Content: 99.00%

Inquiry
Jinan Million Pharmaceutical Co., Ltd Contact Supplier

CN
2 YRS

Business licensed Certified factory

Manufactory Supplier of Avanafil,Tirzepatide,Semaglutide,Pregabalin,Nootropics,MT2,GPC,supplements

Urolithin B CAS 1139-83-9 99% Hot Sale Pharmaceutical Best Service Pharmaceutical Safe Delivery

Unit Price: $2.39 /MT FOB

CAS No.: 1139-83-9

Grade: Pharmaceutical Grade

Content: 99.56%

Inquiry
Wuhan Comings Biotechnology Co., Ltd. Contact Supplier

CN
3 YRS

Business licensed

Trader Supplier of semaglutide,tirzepatide,Liraglutide,Retatrutide,5-amino-1MQ,SLU-PP-332,Bam-15,Spermidine HCL,ghk-cu,ss31,FOXO-4 DRI

Factory supply high purity Urolithin B CAS1139-83-9 with good price

CAS No.: 1139-83-9

Grade: Top Product

Content: 99%

Inquiry
Henan Chenli Biotechnology Co., LTD. Contact Supplier

CN
3 YRS

Business licensed

Trader Supplier of Fine chemicals and intermediates

China factory supplying Urolithin B cas 1139-83-9 good quality safe delivery

CAS No.: 1139-83-9

Grade: good grade

Content: 99%

Inquiry
Hebei Longbang Technology Co., Ltd Contact Supplier

CN
2 YRS

Business licensed

Trader Supplier of chemical

Cas no. 1139-83-9 3-HYDROXY-6H-DIBENZO[B,D]PYRAN-6-ONE mainly used as a Chemical Reagents

CAS No.: 1139-83-9

Grade: Chemical Grade

Content: 99%

Inquiry