Back

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

Recommended prices only. For prices and orders please contact your local distributor.
Box prices only valid with purchase of full box.

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:
29072200
Index Nr.:
604-005-00-4
Download TDS file for complete specifications