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To assist you in identifying the type of refrigerant you have the following is a list of many types of refrigerant by their R number, IUPAC name, chemical formula and CAS. Please refer to the Brand Name List for identification of refrigerants by brand name, source, type or manufacturer.
This list is constantly being reviewed and updated
R# IUPAC Chemical
Formulary
CAS
 

Methane Series

   
10 Tetrachloromethane CCl4 56-23-5
11 Trichlorofluoromethane CCl3F 75-69-4
12 Dichlorodifluoromethane CCl2F2 75-71-8
12B1 Bromochlorodifluoromethane CBrClF2 353-59-3
12B2 Dibromodifluoromethane CBr2F2 75-61-6
13 Chlorotrifluoromethane CClF3 75-72-9
13B1 Bromotrifluoromethane CF3Br 75-63-8
14 Carbon tetrafluoride CF4 75-73-0
20 Trichloromethane CHCl3 67-66-3
21 Dichlorofluoromethane CHFCl2 75-43-4
22 Chlorodifluoromethane CHClF2 75-45-6
22B1 Bromodifluoromethane CHBrF2 1511-62-2
23 Trifluoromethane CHF3 75-46-7
30 Dichloromethane CH2Cl2 75-09-2
31 Chlorofluoromethane CH2FCl 593-70-4
32 Difluoromethane CH2F2 75-10-5
40 Chloromethane CH3Cl 74-87-3
41 Fluoromethane CH3F 593-53-3
50 Methane CH4  
     
  Ethane Series    
110 Hexachloroethane C2Cl6 67-72-1
111 Pentachlorofluoroethane C2FCl5 354-56-3
112 Tetrachloro-1,2-difluoroethane C2F2Cl4 76-12-0
112a 1,1,12-Tetrachloro-2,2-difluoroethane C2F2Cl4 76-11-9
113 1,1,2-trichlorotrifluoroethane CCl2FCClF2 76-13-1
113a 1,1,1-trichlorotrifluoroethane CCl2FCClF2 354-58-5
114 1,2 dichlorotetrafluoroethane CClF2CClF2 76-14-2
114a 1,1 dichlorotetrafluoroethane CClF2CClF2 374-07-2
114B2 Dibromotetrafluoroethane C2Br2F4 124-73-2
115 Chloropentafluoroethane CClF2CF3 76-15-3
116 Hexafluoroethane C2F6 76-16-4
120 Pentachloroethane C2HCl5 76-01-7
121 Tetrachlorofluoroethane C2HFCl4 354-14-3
122 Trichlorodifluoroethane C2HF2Cl3 354-21-2
123 2,2 dichloro 1,1,1 trifluoroethane CHCl2CF3 306-83-2
124 Chlorotetrafluoroethane C2HF4Cl 2837-89-0
124a Chlorotetrafluoroethane C2HF4Cl 354-25-6
125 Pentafluoroethane C2HF5 354-33-6
125E   3822-68-2
130 Tetrachloroethane C2H2Cl4 79-34-5
131 Trichlorofluoroethane C2H2FCl3 359-28-4
132B Dichlorodifluoroethane C2H2F2Cl2 1649-08-7
132bB2 1,2Dibromo-1,1-difluoroethane   75-82-1
133a Chlorotrifluoroethane C2H2F3Cl 75-88-7
134 1,1,2,2-tetrafluoroethane    
134a 1,1,1,2-Tetrafluoroethane CF3CH2F 811-97-2
E134 Bis(difluoromethyl)ether CHF2OCHF2  
140a Trichloroethane C2H3Cl3 71-55-6
141B2 1,2-Dibromofluoroethane C2H3Br2F 358-97-4
141b Dichlorofluoroethane C2H3FCl2 1717-00-6
142b Chlorodifluoroethane C2H3F2Cl 75-68-3
143a Trifluoroethane C2H3F3 420-46-2
152a Difluoroethane C2H4F2 75-37-6
160 Chloroethane C2H5Cl 75-00-3
170 Ethane C2H6  
     
  Propane Series    
200a    
211 Heptachlorofluoropropane C3FCl7  
212 Hexchlorodifluoropropane C3F2Cl6  
213 Pentachlorotrifluoropropane C3F3Cl5  
214 Tetrachlorotetrafluoropropane C3F4Cl4  
215 Trichloropentafluoropropane C3F5Cl3  
216 Dichlorohexafluoropropane C3F6Cl2  
  Hexafluoropropene C3F6 116-15-4
  Hexafluoropropene,trimer [C3F6]3 6792-31-0
217 Monochloroheptafluoropropane C3F7Cl  
218 Octofluoropropane C3F8 76-19-7
221 Hexachlorofluoropropane C3HFCl6  
222 Pentachlorodifluoropropane C3HF2Cl5  
223 Tetrachlorotrifluoropropane C3HF3Cl4  
224 Trichlorotetrafluoropropane C3HF4Cl3  
225CA Dichloropentafluoropropane C3HF5Cl2  
225CB Dichloropentafluoropropane C3HF5Cl2  
226 Chlorohexafluoropropane C3HF6Cl  
227ca   2252-84-8
227ea 1,1,1,2,3,3,3-Heptafluoropropane C3HF7 431-89-0
231 Pentachlorofluoropropane C3H2FCl5  
232 Tetrachlorodifluoropropane C3H2F2Cl4  
233 Trichlorotrifluoropropane C3H2F3Cl3  
234 Dichlorotetrafluoropropane C3H2F4Cl2  
235 Chloropentafluoropropane C3H2F5Cl  
236cb   677-56-5
236ea   431-63-0
236fa 1,1,1,3,3,3-hexafluoropropane CF3CH2CF3 690-39-1
FE-36 Hexafluoropropane   359-58-0
241 Tetrachlorofluoropropane C3H3FCl4  
242 Trichlorodifluoropropane C3H3F2Cl3  
243 Dichlorotrifluoropropane C3H3F3Cl2  
244 Chlorotetrafluoropropane C3H3F4Cl  
245ca 1,1,2,2,3-pentafluoropropane CHF2CF2CH2F 679-86-7
245cb   1814-88-6
245ea   24270-66-4
245eb Pentafluoropropane C3H3F5 431-31-2
245fa C3H3F5 460-73-1
251 Trichlorofluoropropane C3H4FCl3  
252 Dichlorodifluoropropane C3H4F2Cl2  
253 Chlorotrifluoropropane C3H4F3Cl  
254cb   40723-63-5
261 Dichlorofluoropropane C3H5FCl2  
262 Chlorodifluoropropane C3H5F2Cl  
271 Chlorofluoropropane C3H5FCl  
     
290 Propane C3H8  
     
  Cyclic Organic Compounds    
C316 Dichlorohexafluorocyclobutane C4Cl2F6 356-18-3
C317 Chloroheptafluorocyclobutane C4ClF7 377-41-3
C318 Octafluorocyclobutane C4F8 115-25-3
329ccb   375-17-7
338eea   75995-72-1
347ccd   662-00-0
356mcf    
356mffm    
     
  Perfluorocarbons    
  Perfluorohexane CF3(CF2)4CF3 355-42-0
  (Tetradecafluorohexane) above    
     
  Zeotropes  (wt %)    
400 R-12/R-114 (60/40) binary blend  
401A R-22/R-152a/R-124(53/13/34)    
401B R-22/R-152a/R-124(61/11/28)    
401C R-22/R-152a/R-124(33/15/52)    
402A R-22,R-290, R-125(60/02/38)    
402B R-22, R-290, R-125(38/02/60)    
403A R-290/R-22/R-218(05/75/20)    
403B R-290/R-22/R-218(05/56/39)    
404A R-125/R-143a/R-134a(44/52/04    
     
405A R-22/R-152a/R-142b/R-C318(45/7/5.5/42.5  
     
406A R-22/R-600a/R-142b(55/04/41)    
     
407A R-32/R-125/R-134a(20/40/40)    
407B R-32/R-125/R-134a(10/70/20    
407C R-32/R-125/R-134a    
408A R-22/R-143a(45/55)    
409A R-22,R-124,R-142b    
410A HFC32/HFC125(50/50)    
410B HFC32/HFC125(45/55)    
411A R-1270/R-22/R-152a (1.5/87.5/11)  
411B R-1270/R-22/R-152a (3/94/3)    
412A R-22/R-218/R-142b(70/5/25)    
     
     
414A R-22/R124/600a/142a(51/28.5/4.0/16.5)  
414B R22/124/600a/142b(50/39/1.5/9.5)  
     
  Azeotropes (wt %)    
500 R-12/152a (73.8/26.2 % by mass    
501 R-22/R-12(75/25)    
502 R-22/115 (48.8/51.2%)    
503 R-23/13 (40.1/59.9 %)    
504 R-32/R-115(48.2/51.8)    
505 R-12/R-31(78/22)    
506 R-31/R-114(55.1/44.9)    
507 R-125/R-143a/R-134a    
508 R-23/R-116 (39/61)    
509 R-22/R218(44/56)    
     
  Miscellaneous Organic Cmpds    
600 Butane CH3CH2CH2CH3
600a Methylpropane(isobutane) (CH3)2CH2CH3
610 Ethyl Ether C2H5OC2H5  
611 Methyl Formate CH(CH3)3  
     
630 Methyl Amine CH2NH2  
631 Ethyl Amine C2H5NH2  
     
702 Hydrogen H2  
704 Helium He  
717 Ammonia NH3  
718 Water H2O  
720 Neon Ne  
728 nitrogen N2  
732 Oxygen O2  
740 Argon Ar  
744 Carbon Dioxide CO2  
744A Nitrous Oxide N2O  
764 Sulfur Dioxide SO2  
     
  Ethylene Series    
1112a 1,1-Dichloro-2,2-difluoroethylene    
1113 Chlorotrifluoroethylene    
1114 Tetrafluoroethylene    
1120 Trichloroethylene    
1130 Cis-1.2 dichloroethylene    
1132 1,1-Difluoroethylene    
1140 Chloroethylene    
1141 Fluoroethylene    
     
  Bromine Series    
1211 Bromochlorodifluoromethane CF2ClBr  
1270 Propylene    
1301 Bromotrifluoromethane CF3Br  
2402 Dibromotetrafluoroethane C2F4Br2  
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