CAS 996-98-5 Oxalic acid, dihydrazide (HCID 13826)

Names & identifiers

Preferred name: Oxalic acid, dihydrazide
IUPAC: ethanedihydrazide
English name: Oxalyl dihydrazide
Molecular formula: C2H6N4O2
Molecular weight: 118.1

Names & synonyms

996-98-5Oxalic acid hydrazideOxalylhydrazideOxalic acid, dihydrazideEthanedioic acid dihydrazideRefChem:168797213-640-2Oxalyl dihydrazideOxalyldihydrazideEthanedihydrazideEthanedioic acid, dihydrazideOxalic dihydrazide

Show more names

OXALIC ACID DIHYDRAZIDEAURORA KA-6471xalylhydrazideoxalichydrazide

OxaldihydrazideOxalyl hydrazideOxalhydrazideOxalohydrazideOxaloyl dihydrazideOxalylhydrazineOxaloylhydrazineOxalic hydrazide

Database identifiers

CAS: 996-98-5
PubChem CID: 13826
DTXSID: DTXSID20870823
UNII: 9ZG676L978
EC Number: 213-640-2
Nikkaji: J36.620J

Properties

Computed structural properties

XLogP: -1.1
Topological polar surface area: 110 Å²
Hydrogen bond donors: 4
Hydrogen bond acceptors: 4
Rotatable bonds: 0
Heavy atoms: 8
Formal charge: 0
Complexity: 96

Physicochemical properties

Melting point: 242 · 242-244 °C (dec.)(lit.)
Boiling point: 220.6 °C · 220.6°C (rough estimate)
Density: 1.458 · 1.4580
refractive index: 1.4462 · 1.4462 (estimate)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
Water Solubility: almost transparency in hot Water
form: Solid
pka: 10.61 · 10.61±0.20(Predicted)
color: White to off white
Odor: Odorless
BRN: 1072110 · 1072110
InChI: InChI=1S/C2H6N4O2/c3-5-1(7)2(8)6-4/h3-4H2,(H,5,7)(H,6,8)
InChIKey: SWRGUMCEJHQWEE-UHFFFAOYSA-N
SMILES: C(=O)(NN)C(=O)NN
CAS DataBase Reference: 996 · 996-98-5(CAS DataBase Reference)
NIST Chemistry Reference: Ethanedioic acid, dihydrazide(996-98-5)
EPA Substance Registry System: Ethanedioic acid, dihydrazide (996-98-5)
UNSPSC Code: 12352100 · 12352100
NACRES: 22 · NA.22
Symbol(GHS): 7 · GHS07
Signal word: Danger
Hazard statements: 315 · H315-H319-H335
Precautionary statements: 261 · P261-P280a-P304+P340-P305+P351+P338-P405-P501a
PPE: 95 · Eyeshields, Gloves, type N95 (US)
Hazard Codes: Xi
Risk Statements: 36 · 36/37/38
Safety Statements: 22 · 22-24/25-36-26
WGK Germany: 3 · 3
RTECS: 2840000 · RO2840000
TSCA: TSCA listed
HS Code: 29280090 · 29280090
Storage Class: 11 · 11 - Combustible Solids

Safety & regulation

GHS classification

GHS Classification · 5 items

Warning

H315 (11.8%): Causes skin irritation [Warning Skin corrosion/irritation]；H317 (88.2%): May cause an allergic skin reaction [Warning Sensitization, Skin]；H319 (13.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]；H335 (11.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]；H411 (88.2%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P261, P264, P264+P265, P271, P272, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P333+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 51 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Hazard information

Regulatory InformationChemical: Ethanedioic acid, dihydrazide

Hazard Classes and CategoriesSkin Irrit. 2 (11.8%)；Skin Sens. 1 (88.2%)；Eye Irrit. 2A (13.7%)；STOT SE 3 (11.8%)；Aquatic Chronic 2 (88.2%)

Regulatory information

Regulatory InformationChemical: Ethanedioic acid, dihydrazide

Safety data

PPE: Eyeshields, Gloves, type N95 (US)
wgk: 3
tsca: TSCA listed
rtecs: RO2840000
hs_code: 29280090
risk_code: 36/37/38
Signal word: Danger
Symbol(GHS): GHS07
hazard_code: Xi
safety_code: 22-24/25-36-26
Storage Class: 11 - Combustible Solids
Hazard statements: H315-H319-H335
Precautionary statements: P261-P280a-P304+P340-P305+P351+P338-P405-P501a

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationEthanedioic acid, 1,2-dihydrazide: ACTIVE

Applications

UsesOxalyldihydrazide was used as a crosslinker for enrichment of carbonylated proteins within a microfluid chip. It was also used to synthesize a new series of manganese and iron salt forming complexes by template condensation with glyoxal.