Cyclic adenosine diphosphate-ribose

≥90% (HPLC), lyophilized powder

cADPR, ADP-cyclo[N1:1′′]-ribose, Cyclic ADPR, cADP-ribose
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:

Quality Level


≥90% (HPLC)


lyophilized powder

storage temp.


SMILES string




InChI key


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Cyclic adenosine diphosphate-ribose (cADPR) is an intracellular second messenger that mobilizes intracellular Ca2+ release from the sarcoplasmic reticulum through ryanodine receptors. CADPR is also a second messenger for glucose-induced insulin release from endocrine pancreas and for abscisic acid-induced calcium release in plants.
Cyclic adenosine diphosphate-ribose has been used to stimulate astrocytes to activate CD38 signaling. It has also been used as a supplement in buffered peptone water to recover S. enteritidis.


0.5 mg in glass bottle
Package size based on nucleotide content.

Biochem/physiol Actions

Mobilizes intracellular Ca2+; regulates Ca2+-induced Ca2+ release specifically blocked by ryanodine; second messenger for glucose-induced insulin release from the endocrine pancreas and for abscisic acid-induced calcium release in plants.

Physical form

Lyophilized powder containing approx. 30% sodium phosphate buffer salts.


Exclamation mark

Signal Word


Hazard Statements

Precautionary Statements


Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system


11 - Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Shunichi Kajioka et al.
The Journal of urology, 186(2), 736-744 (2011-06-21)
To clarify the properties of adenosine triphosphate sensitive K+ channel in human detrusor smooth muscle we examined the effect of the representative nicotinic acid derivatives β-nicotinamide adenine dinucleotide, cyclic adenosine diphosphate ribose and nicotinic acid adenine dinucleotide phosphate (Sigma-Aldrich®) on...
Effects of carob bean gum on performance, nutrient digestibility and Salmonella enterica var. Enteritidis colonisation in chickens
Vila B, et al.
Food Research International, 45(2), 1133-1138 (2012)
Hon Cheung Lee
Science China. Life sciences, 54(8), 699-711 (2011-07-26)
The concept advanced by Berridge and colleagues that intracellular Ca(2+)-stores can be mobilized in an agonist-dependent and messenger (IP(3))-mediated manner has put Ca(2+)-mobilization at the center stage of signal transduction mechanisms. During the late 1980s, we showed that Ca(2+)-stores can...
Yong Juan Zhao et al.
Science signaling, 5(241), ra67-ra67 (2012-09-13)
The transmembrane enzyme CD38, a multifunctional protein ubiquitously present in cells, is the main enzyme that synthesizes and hydrolyzes cyclic adenosine 5'-diphosphate-ribose (cADPR), an intracellular Ca(2+)-mobilizing messenger. CD38 is thought to be a type II transmembrane protein with its carboxyl-terminal...
Peter J Kilfoil et al.
Circulation research, 112(4), 721-741 (2013-02-16)
Recent research suggests that in addition to their role as soluble electron carriers, pyridine nucleotides [NAD(P)(H)] also regulate ion transport mechanisms. This mode of regulation seems to have been conserved through evolution. Several bacterial ion-transporting proteins or their auxiliary subunits...

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