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more general categories	information about this item
08. Chemical Category	08. Chemical Category
main group molecular entity [CHEBI:33579] (25650)
s-block molecular entity [CHEBI:33674] (7287)
hydrogen molecular entity [CHEBI:33608] (6932)
hydroxides [CHEBI:24651] (5641)
oxoacid [CHEBI:24833] (3119)
pnictogen oxoacid [CHEBI:33408] (39)
phosphorus oxoacid [CHEBI:33457] (16)	diphosphonic acid [CHEBI:29205] (1)
p-block molecular entity [CHEBI:33675] (25343)
pnictogen molecular entity [CHEBI:33302] (10027)
phosphorus molecular entity [CHEBI:26082] (2769)
phosphorus oxoacids and derivatives [CHEBI:36360] (2691)
phosphorus oxoacid [CHEBI:33457] (16)	diphosphonic acid [CHEBI:29205] (1)
pnictogen oxoacid [CHEBI:33408] (39)
phosphorus oxoacid [CHEBI:33457] (16)	diphosphonic acid [CHEBI:29205] (1)
chalcogen molecular entity [CHEBI:33304] (15225)
oxygen molecular entity [CHEBI:25806] (14414)
hydroxides [CHEBI:24651] (5641)
oxoacid [CHEBI:24833] (3119)
pnictogen oxoacid [CHEBI:33408] (39)
phosphorus oxoacid [CHEBI:33457] (16)	diphosphonic acid [CHEBI:29205] (1)
carbon group molecular entity [CHEBI:33582] (23847)
organic molecular entity [CHEBI:50860] (23769)
acid anhydride [CHEBI:36606] (30)
acyclic acid anhydride [CHEBI:36608] (20)
acyclic phosphorus acid anhydride [CHEBI:37786] (2)	diphosphonic acid [CHEBI:29205] (1)
polyatomic entity [CHEBI:36357] (18777)
heteroatomic molecular entity [CHEBI:37577] (13672)
hydroxides [CHEBI:24651] (5641)
oxoacid [CHEBI:24833] (3119)
pnictogen oxoacid [CHEBI:33408] (39)
phosphorus oxoacid [CHEBI:33457] (16)	diphosphonic acid [CHEBI:29205] (1)
ChEBI Compound Accession Identifier:	[CHEBI:29205]
ChEBI Compound Description:	null
ChEBI Compound Identification Number:	29205
ChEBI InChI Value:	InChI=1S/H4O5P2/c1-6(2)5-7(3)4/h6-7H,(H,1,2)(H,3,4)
ChEBI InChIKey Value:	XQRLCLUYWUNEEH-UHFFFAOYSA-N
ChEBI Compound Name:	diphosphonic acid
ChEBI SMILES Value:	[H]P(O)(=O)OP([H])(O)=O
ChEBI Substance ID:	8146688
ChEBI URL:	ChEBI:29205
ChemSpider ID:	10449281
Ontomatica Chemical Accession Key (OnChAKey):	XQRLCLUYWUNEEH_UHFFFAOYSA_N_000_000000
PubChem Compound ID:	6326976