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Impurities and reference standards

Pgb1

Also known as prostaglandin B1, 9-oxo-15S-hydroxy-8(12),13E-prostadienoic acid, Prosta-8(12),13-dien-1-oic acid, 15-hydroxy-9-oxo-, (13E,15S)-

CAS 13345-51-2Formula C20H32O4Molar mass 336.47 g/mol
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Pgb1 chemical structure, C20H32O4, CAS 13345-51-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
13345-51-2
Formula
C20H32O4
Molar mass
336.47 g/mol
HS code
293750
Category
Impurities and reference standards

What is Pgb1?

Plain description, key identifiers and synonyms

Prostaglandin B1 is a member of the class of prostaglandins B that is prosta-8(12),13-dien-1-oic acid carrying oxo and hydroxy substituents at positions 9 and 15 respectively (the 13E,15S-stereoisomer). It has a role as a human metabolite. It is a conjugate acid of a prostaglandin B1(1-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
7-[2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxocyclopenten-1-yl]heptanoic acid
CAS number
13345-51-2
Molecular formula
C20H32O4
UNII
1TYI1PJ64T
MDL number
MFCD00036679
InChIKey
YBHMPNRDOVPQIN-VSOYFRJCSA-N
InChI
InChI=1S/C20H32O4/c1-2-3-6-9-17(21)14-12-16-13-15-19(22)18(16)10-7-4-5-8-11-20(23)24/h12,14,17,21H,2-11,13,15H2,1H3,(H,23,24)/b14-12+/t17-/m0/s1
Canonical SMILES
CCCCCC(O)C=CC1=C(CCCCCCC(=O)O)C(=O)CC1
Isomeric SMILES
CCCCC[C@@H](/C=C/C1=C(C(=O)CC1)CCCCCCC(=O)O)O

Synonyms

  • prostaglandin B1
  • 9-oxo-15S-hydroxy-8(12),13E-prostadienoic acid
  • Prosta-8(12),13-dien-1-oic acid, 15-hydroxy-9-oxo-, (13E,15S)-
  • 7-[2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxocyclopenten-1-yl]heptanoic acid
  • 7-(2-((E,3S)-3-hydroxyoct-1-enyl)-5-oxocyclopenten-1-yl)heptanoic acid
  • (13E,15S)-15-hydroxy-9-oxoprosta-8(12),13-dien-1-oic acid
  • Prostaglandinb1
  • PGB1 (Prostaglandin B1)
  • Prosta-8(12),13-dien-1-oicacid, 15-hydroxy-9-oxo-, (13E,15S)-
  • Prostaglandin E1-278
  • Postaglandin B1
  • 15(S)-hydroxy-9-oxo-8(12),13-trans-prostadienoic acid
  • 7-[2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxo-cyclopenten-1-yl]heptanoic acid
  • (S,E)-7-(2-(3-hydroxyoct-1-en-1-yl)-5-oxocyclopent-1-en-1-yl)heptanoic acid
  • Prostaglandin-B1
  • (13E,15S)-15-hydroxy-9-oxoprosta-8(12),13-dien-1-oate
  • Prostaglandin B1, PGE1-278
  • Prostaglandin B1, synthetic, powder
  • Alprostadil EP Impurity B, Prostaglandinb1
  • Alprostadil EP Impurity B, Prostaglandin B1
  • Alprostadil impurity b
  • Alprostadil (Prostaglandin E1) EP Impurity B
  • 9-oxo-15S-hydroxy-8(12),13E-prostadienoate
  • 15-Hydroxy-9-oxoprosta-8(12),13-dienoic acid
  • 15Alpha-hydroxy-9-ketoprosta-8(12),13-dienoic acid
Show all 28 synonyms
  • 15Alpha-hydroxy-9-oxo-8(12),13e-prostadienoic acid
  • 1-Cyclopentene-1-heptanoic acid, 2-(3-hydroxy-1-octenyl)-5-oxo-
  • Prostaglandin B1, United States Pharmacopeia (USP) Reference Standard

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
336.47 g/molcalc.
Exact mass
336.2301 Dacalc.
LogP (octanol/water)
4.57calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
13calc.
Heavy atoms
24calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.7calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C1C=CCC1

O=C1C=CCC1

1 ring, 6 atoms, the 2-Cyclopenten-1-one ring system.

829 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Pgb1 suppliers

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Pgb1 price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Pgb1 is traded under.

HS 2937.50Indicative HS code

Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues

World exports in 2024
$270M
+9.1% vs 2023, imports $304M
2019 to 2024
Top exporters
  1. Hungary22.8%
  2. Czech Republic21.6%
  3. South Korea14.6%
Top importers
  1. Japan17.0%
  2. Italy13.1%
  3. Germany10.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Pgb1 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Pgb1, based on the data on this page

What is Pgb1?

Prostaglandin B1 is a member of the class of prostaglandins B that is prosta-8(12),13-dien-1-oic acid carrying oxo and hydroxy substituents at positions 9 and 15 respectively (the 13E,15S-stereoisomer). It has a role as a human metabolite. It is a conjugate acid of a prostaglandin B1(1-).

What is the CAS number of Pgb1?

The CAS registry number of Pgb1 is 13345-51-2.

What is the molecular formula and weight of Pgb1?

The molecular formula of Pgb1 is C20H32O4 and its molar mass is 336.47 g/mol.

What is Pgb1 used for?

Known uses and roles of Pgb1 include animal metabolite, eukaryotic metabolite, human metabolite, mammalian metabolite and metabolite.

Is Pgb1 hazardous?

No GHS hazard classification for Pgb1 is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Pgb1?

Pgb1 is usually classified under HS code 293750 (Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pgb1?

Post a free request on CompoundList and suppliers of Pgb1 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Pgb1?

Suppliers quote Pgb1 on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Pgb1

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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