Phosphonic Acid impurities and related standards
83 reference standards related to
Phosphonic Acid held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities,
metabolites and labelled analogues where available.
In this group: 80 fine chemicals · 2 reference standards · 1 impurity reference standard. CAS numbers are listed for 83 of 83; 53 entries carry a structure drawing.
On this page On this page
All entries — structure, identifiers and pack sizes Frequently asked 83 reference standards
All entries — structure,
identifiers and pack sizes
Download for Excel (.xlsx)
CAS 4721-37-3 RS-P471001
Formula C3H9O3P
MW 124.08
COA per lot
+ Enquiry list
structure on request
CAS not assigned RS-P471082
Formula C3H5O4P.Ca
COA per lot
+ Enquiry list
CAS 42023-31-4 RS-P471078
Formula C24H30BrN5Si
MW 496.53
COA per lot
+ Enquiry list
CAS 37107-08-7 RS-P471072
Formula C9H23N3O15P5+5
MW 568.16
COA per lot
+ Enquiry list
CAS 4037-12-1 RS-P471075
Formula C7H13O3P
MW 176.15
COA per lot
+ Enquiry list
CAS 158954-92-8 RS-P471009
Formula C15H25O4P
COA per lot
+ Enquiry list
CAS 81364-33-2 RS-P471002
Formula C13H21O4P
MW 272.28
COA per lot
+ Enquiry list
CAS 36669-85-9 RS-P471071
Formula C2H6O7P2-2
MW 204.01
COA per lot
+ Enquiry list
CAS 42220-47-3 RS-P471077
Formula C4H15NO8P2
MW 267.11
COA per lot
+ Enquiry list
structure on request
CAS 91672-46-7 RS-P471054
COA per lot
+ Enquiry list
structure on request
CAS 91672-47-8 RS-P471055
COA per lot
+ Enquiry list
CAS 118632-18-1 RS-P471010
Formula C3H6O3P-
COA per lot
+ Enquiry list
structure on request
CAS 157950-21-5 RS-P471044
COA per lot
+ Enquiry list
structure on request
CAS 25030-86-8 RS-P471069
COA per lot
+ Enquiry list
CAS 110905-37-8 RS-P471011
Formula C8H15O4P
COA per lot
+ Enquiry list
structure on request
CAS 127890-30-6 RS-P471061
COA per lot
+ Enquiry list
CAS 270249-45-1 RS-P471012
Formula C4H8N3O3P
COA per lot
+ Enquiry list
CAS 31182-38-4 RS-P471070
Formula CH3O4P-2
MW 110
COA per lot
+ Enquiry list
structure on request
CAS 197592-17-9 RS-P471068
COA per lot
+ Enquiry list
structure on request
CAS 68909-60-4 RS-P471051
COA per lot
+ Enquiry list
structure on request
CAS 120667-43-8 RS-P471045
COA per lot
+ Enquiry list
CAS 102834-87-7 RS-P471029
Formula C11H14NO3PS
COA per lot
+ Enquiry list
structure on request
CAS 90506-09-5 RS-P471059
COA per lot
+ Enquiry list
structure on request
CAS 90506-10-8 RS-P471053
COA per lot
+ Enquiry list
structure on request
CAS 90506-11-9 RS-P471048
COA per lot
+ Enquiry list
structure on request
CAS 1762-10-3 RS-P471049
COA per lot
+ Enquiry list
CAS 132685-15-5 RS-P471030
Formula C5H12NO4P
COA per lot
+ Enquiry list
CAS 65037-49-2 RS-P471031
Formula C11H18NO3P
COA per lot
+ Enquiry list
CAS 278778-55-5 RS-P471032
Formula C6H14NO5P
COA per lot
+ Enquiry list
structure on request
CAS 73050-02-9 RS-P471050
COA per lot
+ Enquiry list
CAS 339186-29-7 RS-P471073
Formula C7H16NO5P
MW 225.18
COA per lot
+ Enquiry list
CAS 339186-28-6 RS-P471074
Formula C7H16NO5P
MW 225.18
COA per lot
+ Enquiry list
CAS 473707-40-3 RS-P471081
Formula C9H12NO4P
MW 229.17
COA per lot
+ Enquiry list
CAS 261366-47-6 RS-P471033
Formula C6H9BrNO4PS
COA per lot
+ Enquiry list
CAS 227626-14-4 RS-P471034
Formula C7H16NO3P
COA per lot
+ Enquiry list
CAS 120362-30-3 RS-P471035
Formula C16H27O8PS
COA per lot
+ Enquiry list
structure on request
CAS 166394-99-6 RS-P471062
COA per lot
+ Enquiry list
structure on request
CAS 173018-79-6 RS-P471063
COA per lot
+ Enquiry list
structure on request
CAS 173018-76-3 RS-P471064
COA per lot
+ Enquiry list
CAS 166115-75-9 RS-P471036
Formula C18H25N4O6P
COA per lot
+ Enquiry list
CAS 132062-78-3 RS-P471037
Formula C22H23O6PS
COA per lot
+ Enquiry list
CAS 441785-25-7 RS-P471080
Formula C10H14N5O4P
MW 299.23
COA per lot
+ Enquiry list
CAS 405203-86-3 RS-P471079
Formula C9H14NO3P
MW 215.19
COA per lot
+ Enquiry list
CAS 189393-74-6 RS-P471038
Formula C12H15F2O4P
COA per lot
+ Enquiry list
structure on request
CAS 68412-67-9 RS-P471052
COA per lot
+ Enquiry list
structure on request
CAS 68649-37-6 RS-P471056
COA per lot
+ Enquiry list
structure on request
CAS 68412-66-8 RS-P471057
COA per lot
+ Enquiry list
structure on request
CAS 90506-08-4 RS-P471043
Formula Fe4H4S4-4
MW 355.7
COA per lot
+ Enquiry list
structure on request
CAS 171360-37-5 RS-P471065
COA per lot
+ Enquiry list
structure on request
CAS 41222-33-7 RS-P471076
COA per lot
+ Enquiry list
CAS 1610-33-9 RS-P471008
Formula C3H8O3P+
COA per lot
+ Enquiry list
CAS 2404-58-2 RS-P471039
Formula C10H23O3P
COA per lot
+ Enquiry list
CAS 199116-09-1 RS-P471007
Formula C8H21O3PSi
MW 224.31
COA per lot
+ Enquiry list
CAS 24619-55-4 RS-P471040
Formula C5H13O5P
COA per lot
+ Enquiry list
CAS 2452-70-2 RS-P471041
Formula C11H25O3P
COA per lot
+ Enquiry list
structure on request
CAS 170836-68-7 RS-P471066
COA per lot
+ Enquiry list
CAS 683-32-9 RS-P471042
Formula C6H15O3P
COA per lot
+ Enquiry list
structure on request
CAS 94891-45-9 RS-P471058
COA per lot
+ Enquiry list
CAS 136455-49-7 RS-P471013
Formula C26H50O12P4
COA per lot
+ Enquiry list
CAS 6566-57-0 RS-P471014
Formula C21H39O9P3
COA per lot
+ Enquiry list
CAS 1312682-40-8 RS-P471003
Formula C38H27Br2F4N3O7P2
MW 935.4
COA per lot
+ Enquiry list
CAS 216865-84-8 RS-P471004
Formula C11H17O4P
MW 244.22
COA per lot
+ Enquiry list
CAS 10409-56-0 RS-P471015
Formula C13H19O4P
COA per lot
+ Enquiry list
structure on request
CAS 108071-19-8 RS-P471046
COA per lot
+ Enquiry list
CAS 36992-14-0 RS-P471016
Formula C8H12NO3P
COA per lot
+ Enquiry list
CAS 106692-44-8 RS-P471017
Formula C4H11O4P
COA per lot
+ Enquiry list
CAS 1055985-86-8 RS-P471018
Formula C11H12F2O4P-
COA per lot
+ Enquiry list
CAS 1092367-05-9 RS-P471019
Formula C12H18NO6P
COA per lot
+ Enquiry list
CAS 1132610-60-6 RS-P471020
Formula C25H22FN2O3P
COA per lot
+ Enquiry list
structure on request
CAS 59001-41-1 RS-P471047
COA per lot
+ Enquiry list
CAS 129065-08-3 RS-P471021
Formula C17H35O5P
COA per lot
+ Enquiry list
CAS 2377770-18-6 RS-P471022
Formula C16H18NO5P
COA per lot
+ Enquiry list
CAS 1820857-32-6 RS-P471005
Formula C18H22NO3P
MW 331.3
COA per lot
+ Enquiry list
CAS 960300-47-4 RS-P471023
Formula C30H36N5O6P
COA per lot
+ Enquiry list
CAS 2298391-60-1 RS-P471024
Formula C16H22N3O4P
COA per lot
+ Enquiry list
CAS 1269662-79-4 RS-P471025
Formula C30H31ClN5O6P
COA per lot
+ Enquiry list
CAS 1049677-14-6 RS-P471026
Formula C12H27O7P
COA per lot
+ Enquiry list
CAS 1642311-76-9 RS-P471006
Formula C17H28BO5P
MW 354.2
COA per lot
+ Enquiry list
CAS 1000-36-8 RS-P471027
Formula C11H25O3P
COA per lot
+ Enquiry list
CAS 7040-59-7 RS-P471028
Formula C8H19O3P
COA per lot
+ Enquiry list
structure on request
CAS 104037-80-1 RS-P471060
COA per lot
+ Enquiry list
structure on request
CAS 180513-31-9 RS-P471067
COA per lot
+ Enquiry list
structure on request
CAS not assigned RS-P471083
COA per lot
+ Enquiry list
83 reference standards
Frequently asked
How many Phosphonic Acid-related reference standards do you hold? 83 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 83 of them and 53 entries carry a structure drawing. The catalogue is extended as new lots are released.
Can you supply a Phosphonic Acid impurity that is not listed here? Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.
What documentation is supplied with Phosphonic Acid impurities? Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.
Do you publish prices or a lead time for Phosphonic Acid impurities? No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.
Cannot find the impurity you need? Non-compendial
impurities can be quoted from a structure — a CAS number is not required.
Write to sales@rssechem.com .
![Chemical structure of Phosphonic acid, [(3-methyl-2(3H)-benzothiazolylidene)methyl]-, dimethyl ester, (Z)-(9CI)](/structures/w2/IAXHVCZYYJRTCJ-FLIBITNWSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [1-(acetylamino)-1-methylethyl]-(9CI)](/structures/w2/YMHPEPZGRLXAOT-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [1-[(phenylmethyl)amino]ethyl]-, dimethyl ester, hydrochloride, 95+%](/structures/w2/RDMPJZJJLFTTDJ-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [2-(1,5-dihydroxy-3-pyrrolidinyl)ethyl]-(9CI)](/structures/w2/SFSPHKZOPAHBMG-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [2-[(2R,3R,4R,5R)-3,4-dihydroxy-5-methyl-2-pyrrolidinyl]ethyl]-(9CI)](/structures/w2/SQCCSCCORGBPNM-DBRKOABJSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [2-[(2R,3R,4R,5S)-3,4-dihydroxy-5-methyl-2-pyrrolidinyl]ethyl]-(9CI)](/structures/w2/SQCCSCCORGBPNM-BDVNFPICSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [[(4-ethylphenyl)amino]carbonyl]-(9CI)](/structures/w2/KGNSYMGWPCEFDZ-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [[(5-bromo-2-methyl-4-thiazolyl)methoxy]methyl]-(9CI)](/structures/w2/KHJKVCKUZILZPS-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [[1-(aminomethyl)cyclopentyl]methyl]-(9CI)](/structures/w2/OKVZNIWROFVGGM-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [[1-[[(methylsulfonyl)oxy]methyl]-2-(phenylmethoxy)ethoxy]methyl]-, diethyl ester-R](/structures/w2/GXAKNYJUUKMDPM-MRXNPFEDSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [[4-[[(6-amino-1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxo-5-pyrimidinyl)amino]carbonyl]phenyl]methyl]-, diethyl ester (9CI)](/structures/w2/KYDKPQWVWFLYDN-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [[[(4-methylphenyl)sulfonyl]oxy]methyl]-, bis(phenylmethyl) ester (9CI)](/structures/w2/FKDIKCPDQRCZKT-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of PHOSPHONIC ACID, [[[1-[(2-AMINO-9H-PURIN-9-YL)METHYL]CYCLOPROPYL]OXY]METHYL]-(9CI)](/structures/w2/KDNSSKPZBDNJDF-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [amino(4-ethylphenyl)methyl]-(9CI)](/structures/w2/RQISCWAPZXCQKG-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, [difluoro(4-formylphenyl)methyl]-, diethyl ester](/structures/w2/XKIFBBTWXXFDOM-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P,P',P'',P'''-[1,2,4,5-benzenetetrayltetrakis(methylene)]tetrakis-, P,P,P',P',P'',P'',P''',P'''-octaethyl ester](/structures/w2/UVEPIPICGDMOMD-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P,P',P''-[1,3,5-benzenetriyltris(methylene)]tris-, P,P,P',P',P'',P''-hexaethyl ester](/structures/w2/VXMDPGKNXQZYNZ-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P,P'-[[2-(1H-benzotriazol-1-yl)-2-benzoyl-1,3-propanediyl]bis[(3-bromo-7,2-naphthalenediyl)(difluoromethylene)]]bis-](/structures/w2/DELVPFVMXYCLMW-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[(1R)-1-amino-2-phenylethyl]-](/structures/w2/FQCNOURLMNHAQN-MRVPVSSYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[(1S)-1-hydroxyethyl]-, dimethyl ester](/structures/w2/KZHGNHTVCUWRKR-BYPYZUCNSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[(1Z)-3,3-difluoro-2-hydroxy-3-phenyl-1-propen-1-yl]-, dimethyl ester, sodium salt (1:1)](/structures/w2/OISNFJZKJVVZDB-DQMXGCRQSA-M.webp?v=5)
![Chemical structure of Phosphonic acid, P-[(4-Methoxy-3-nitrophenyl)Methyl]-, diethyl ester](/structures/w2/HTJPZWZRUICIFR-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[(5-fluoro-6-Methyl-2-pyridinyl)(phenylaMino)Methyl]-, diphenyl ester](/structures/w2/RWXCRJBBOPMPRT-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[11-(acetyloxy)undecyl]-, diethyl ester](/structures/w2/CMQVKCUJSRHQKE-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl]-](/structures/w2/XIOYECJFQJFYLM-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[2-(9H-carbazol-9-yl)ethyl]-, diethyl ester](/structures/w2/BTAVPSSFPSZFDF-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[2-[(2S)-2,6-diamino-1-oxohexyl]-2,3-dihydro-1H-isoindol-1-yl]-, bis[4-(acetylamino)phenyl] ester](/structures/w2/MKKBABAOGFLBRQ-MBCWZBCWSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[2-[1-(8-methoxy-4-quinazolinyl)-4-piperidinyl]ethyl]-](/structures/w2/IXXUGBPAQOKGTM-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[2-[[4-[[3-chloro-4-(2-pyridinylmethoxy)phenyl]amino]-3-cyano-7-ethoxy-6-quinolinyl]amino]-2-oxoethyl]-, diethyl ester](/structures/w2/NCWDQEJFKNATGG-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[6-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]hexyl]-](/structures/w2/KHJUSIUEGSNSQG-UHFFFAOYSA-N.webp?v=5)
![Chemical structure of Phosphonic acid, P-[[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]methyl]-, diethyl ester](/structures/w2/FMPLFEGDIWHWDG-UHFFFAOYSA-N.webp?v=5)
