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Hydroquinone (USP) pure, pharma grade

1,4-Benzenediol, 1,4-Dihydroxybenzene

Assay (calc. a.d.s.): 99.0-100.5%
Code
141351
CAS
123-31-9
Molecular Formula
C6H4(OH)2
Molar mass
110.11 g/mol

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code packaging size price per unit box price per unit
Code & packaging Price per piece
141351.0914
code
141351.0914
packaging size
5 kg
Product active until stock lasts.
molecule for: Hydroquinone (USP) pure, pharma grade
Melting Point:
170 °C
Boiling Point:
287 °C
Solubility:
water 70 g/l at 20 °C
Physical Description:
solid
White crystals, turns to grey on exposure to air and light
Product Code:
141351
Product Name:
Hydroquinone (USP) pure, pharma grade
Quality Name:
pure, pharma grade
Specifications:
Assay (calc. a.d.s.): 99.0-100.5%
Identity according to Pharmacopoeias:: passes test
Melting range: 172-174°C

Maximum limit of impurities
Insoluble matter in H2O: passes test
Residue on ignition (as SO4): 0.1 %
Sulfate (SO4): 0.05%
Residual solvents (Ph.Eur/USP): passes test
Pyrocatechol: 0.05%
Water (H2O): 0.5 %
Heavy metals (as Pb): 0.002%
Residual metals ICP: (according to EMEA/CHMP/SWP/4446/2000)
Class 1A (Pt, Pd): 10 ppm
Class 1B (Ir, Rh, Ru, Os): 10 ppm
Class 1C (Mo, Ni, Cr, V): 25 ppm
Class 2 (Cu, Mn): 250 ppm
Class 3 (Fe, Zn): 1,300 ppm
Hazard pictograms
  • GHS05 Hazard
  • GHS07 Hazard
  • GHS08 Hazard
  • GHS09 Hazard
UN:
3077
Class/PG:
9/III
ADR:
9/III
IMDG:
9/III
IATA:
9/III
WGK:
1
Storage:
Room Temperature.
Signal Word:
Danger
GHS Symbols:
GHS07
GHS08
GHS05
GHS09
H Phrases:
H302
H351
H318
H317
H341
H400
P Phrases:
P202
P261
P264
P270
P272
P273
P280
P281
P301+P312
P302+P352
P305+P351+P338
P308+P313
P310
P321
P330
P333+P313
P363
P391
P405
P501
Master Name:
Hydroquinone
Synonyms Long Text:
1,4-Benzenediol, 1,4-Dihydroxybenzene
EINECS:
204-617-8
CS:
2907 22 00 10
Index Nr.:
604-005-00-4
Download TDS file for complete specifications