CR 39

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 598385

CAS#: 25656-90-0

Description: CR 39 is a plastic used as a charged particle detector for superimposed autoradiography tissue images.

Chemical Structure

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CR 39
CAS# 25656-90-0
Instruction

Theoretical Analysis

MedKoo Cat#: 598385
Name: CR 39
CAS#: 25656-90-0
Chemical Formula: C12H18O7
Exact Mass: 274.11
Molecular Weight: 274.260
Elemental Analysis: C, 52.55; H, 6.62; O, 40.83

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales @medkoo.com or click below button.
Note: Price will be listed if it is available in the future.

Request quote for custom synthesis

Synonym: CR 39; CR-39; CR39; PADC; PM 600; Lantrak 2; Lantrak 1; Harzlas TD 1;

IUPAC/Chemical Name: diallyl (oxybis(ethane-2,1-diyl)) bis(carbonate)

InChi Key: JHQVCQDWGSXTFE-UHFFFAOYSA-N

InChi Code: InChI=1S/C12H18O7/c1-3-5-16-11(13)18-9-7-15-8-10-19-12(14)17-6-4-2/h3-4H,1-2,5-10H2

SMILES Code: C=CCOC(OCCOCCOC(OCC=C)=O)=O

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

More Info:

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 274.26 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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1: Milenkovic B, Stevanovic N, Krstic D, Nikezic D. Neutron detection by a CR-39 detector and analysis of proton tracks etched in the same and opposite directions. Radiat Prot Dosimetry. 2014 Oct;161(1-4):108-11. doi: 10.1093/rpd/nct321. Epub 2013 Dec 8. PubMed PMID: 24324253.

2: Franci D, Aureli T, Cardellini F. Study of ageing and fading in CR-39 detectors for different storage conditions. Radiat Prot Dosimetry. 2015 Dec;167(4):425-8. doi: 10.1093/rpd/ncu360. Epub 2014 Dec 19. PubMed PMID: 25527181.

3: Sahoo GS, Tripathy SP, Paul S, Sharma SC, Joshi DS, Gupta AK, Bandyopadhyay T. Effects of high neutron doses and duration of the chemical etching on the optical properties of CR-39. Appl Radiat Isot. 2015 Jul;101:114-121. doi: 10.1016/j.apradiso.2015.04.002. Epub 2015 Apr 9. PubMed PMID: 25889876.

4: Sahoo GS, Paul S, Tripathy SP, Sharma SC, Jena S, Rout S, Joshi DS, Bandyopadhyay T. Effects of neutron irradiation on optical and chemical properties of CR-39: Potential application in neutron dosimetry. Appl Radiat Isot. 2014 Dec;94:200-205. doi: 10.1016/j.apradiso.2014.08.012. Epub 2014 Aug 28. PubMed PMID: 25218462.

5: Franci D, Aureli T. A method to account for track overlap in CR-39 detectors. Radiat Prot Dosimetry. 2014 Jan;158(1):107-10. doi: 10.1093/rpd/nct193. Epub 2013 Aug 4. PubMed PMID: 23918743.

6: Milenkovic B, Stevanovic N, Nikezic D, Kosutic D. Determination of a CR-39 detector response to neutrons from an Am-Be source. Appl Radiat Isot. 2014 Aug;90:225-8. doi: 10.1016/j.apradiso.2014.04.008. Epub 2014 Apr 15. PubMed PMID: 24814609.

7: Joshirao PM, Shin JW, Vyas CK, Kulkarni AD, Kim H, Kim T, Hong SW, Manchanda VK. Development of optical monitor of alpha radiations based on CR-39. Appl Radiat Isot. 2013 Nov;81:184-9. doi: 10.1016/j.apradiso.2013.06.012. Epub 2013 Jun 24. PubMed PMID: 23845392.

8: Sahoo GS, Tripathy SP, Paul S, Sharma SD, Sharma SC, Joshi DS, Bandyopadhyay T. Neutron dose estimation via LET spectrometry using CR-39 detector for the reaction (9)Be (p, n). J Med Phys. 2014 Oct;39(4):225-30. doi: 10.4103/0971-6203.144487. PubMed PMID: 25525310; PubMed Central PMCID: PMC4258730.

9: Fábián F, Csordás A, Shahrokhi A, Somlai J, Kovács T. Calibration of CR-39-based thoron progeny device. Radiat Prot Dosimetry. 2014 Jul;160(1-3):169-72. doi: 10.1093/rpd/ncu072. Epub 2014 Apr 9. PubMed PMID: 24723185.

10: Franci D, Aureli T, Cardellini F. AN ALTERNATIVE CALIBRATION OF CR-39 DETECTORS FOR RADON DETECTION BEYOND THE SATURATION LIMIT. Radiat Prot Dosimetry. 2016 Dec;172(4):496-500. doi: 10.1093/rpd/ncv496. Epub 2015 Dec 8. PubMed PMID: 26656081.

11: Abo-Elmagd M, Sadek AM. Development of a model using the MATLAB System identification toolbox to estimate (222)Rn equilibrium factor from CR-39 based passive measurements. J Environ Radioact. 2014 Dec;138:33-7. doi: 10.1016/j.jenvrad.2014.07.024. Epub 2014 Aug 15. PubMed PMID: 25128775.

12: Caresana M, Ferrarini M, Parravicini A, Sashala Naik A. Evaluation of a personal and environmental dosemeter based on CR-39 track detectors in quasi-monoenergetic neutron fields. Radiat Prot Dosimetry. 2014 Oct;161(1-4):100-3. doi: 10.1093/rpd/nct320. Epub 2013 Dec 8. PubMed PMID: 24324248.

13: Al-Hamzawi AA, Jaafar MS, Tawfiq NF. Uranium concentration in blood samples of Southern Iraqi leukemia patients using CR-39 track detector. J Radioanal Nucl Chem. 2014;299(3):1267-1272. Epub 2013 Nov 5. PubMed PMID: 26224958; PubMed Central PMCID: PMC4514681.

14: Joshirao PM, Vyas CK, Kim T, Kalsi PC, Manchanda VK. Determination of alpha activity in organic solvents using CR-39. Appl Radiat Isot. 2013 Aug;78:68-71. doi: 10.1016/j.apradiso.2013.04.013. Epub 2013 Apr 18. PubMed PMID: 23676565.

15: Azooz AA, Al-Jubbori MA. Alpha particles energy estimation from track diameter development in a CR-39 detector. Appl Radiat Isot. 2016 Sep;115:74-80. doi: 10.1016/j.apradiso.2016.06.008. Epub 2016 Jun 8. PubMed PMID: 27341133.

16: Hegazy TM, Shoeib MY, Hassan GM. The effect of different gamma doses on some properties of a CR-39 detector. Radiat Prot Dosimetry. 2013 Aug;155(4):389-93. doi: 10.1093/rpd/nct025. Epub 2013 Feb 26. PubMed PMID: 23443413.

17: Al-Jubbori MA. A parameterization of the chemistry-normality dependence of bulk etch rate in a CR-39 detector. Appl Radiat Isot. 2016 Dec;118:228-231. doi: 10.1016/j.apradiso.2016.09.022. Epub 2016 Sep 20. PubMed PMID: 27684454.

18: Brown JM, Solomon S, Tinker RA. Development of an energy discriminate CR-39(®) nuclear track etch dosimeter for Radon-220 gas measurements. J Environ Radioact. 2011 Oct;102(10):901-5. doi: 10.1016/j.jenvrad.2010.09.008. Epub 2010 Oct 27. PubMed PMID: 20980083.

19: Tawara H, Doke T, Hayashi T, Kikuchi J, Kyan A, Nagaoka S, Nakano T, Takahashi S, Terasawa K, Yoshihira E. LET distributions from CR-39 plates on Space Shuttle missions STS-84 and STS-91 and a comparison of the results of the CR-39 plates with those of RRMD-II and RRMD-III telescopes. Radiat Meas. 2002 Apr;35(2):119-26. PubMed PMID: 11841106.

20: Matiullah, Rehman S, Rehman S, Mati N, Ahmad S. Some more new etchants for CR-39 detector. Radiat Meas. 2005 Oct;39(5):551-5. PubMed PMID: 16094777.